Ways to solve problems connecting to a Wi-Fi network (Internet). How to disconnect a stranger from Wi-Fi

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The Android mobile operating system is widely used all over the world. Smartphones with this platform are fast and stable. However, some problems arise quite often. One of them is the question of why Android does not connect to the WiFi network. Almost nothing can be configured in the platform itself, since it mobile version and everything is already configured in it. This is done to simplify the use of the smartphone.

To connect to a WiFi network, you just need to turn on the module and select the required network from the proposed list. If the connection is not password protected, the connection will occur automatically. If the key is installed, you will need to enter it. But what should you do if the WiFi adapter on the Android platform does not turn on? This means that the operating system (firmware) has failed. Since we don’t have the opportunity to configure the network manually, we should do general reset parameters to factory settings.

There are also errors when the module wireless communication turns on and finds available networks, but cannot connect to them. What to do in such cases? It's simple.

What to do if your Android tablet or smartphone does not connect to WiFi

Before you move on to solving wireless network connection problems, you should understand what is causing them.

It is worth noting that in most cases, the reason is hidden in the access point, which is not configured correctly. Of course, sometimes there are still failures in Android work, but to fix them, you can try rebooting the device or performing a general reset to factory settings. In other cases, you will have to configure the access point.

So, the most common reasons why Android does not connect to the devil wired network WiFi:

The MAC address of the smartphone was included in the access point filter.
Wireless network mode is not supported by the Android device.
DHCP mode is not enabled in the access point settings.

How to find out the password for your WiFi connection in the router settings: Video

As you can see, there are quite a few reasons, and all of them are hidden in the access point. Let's look at them in order.

Access Point Security Settings

So, first of all, you should check that the entered security key is correct if the network is password protected. It is worth noting here that Android platform configured so that after the first entry of the security key, it is saved. This prevents you from having to enter a password in the future. But how can you look at the key in this case?

To do this, log in to Android settings, and after that, in WiFi settings. Turn on wireless and wait for the device to find the desired network. After that, press it with your finger and hold it until extra menu. Here you need to select “Forget network”. Now search available connections again and try connecting to the router.

If you did everything correctly, the system will ask you to enter your password again. When entering, check the “Show password” box. This will allow you to see the characters you are entering and check that they are correct.

Login to router settings

Sometimes it happens that the user has forgotten own password from WiFi. In this case, you will need to enter the access point settings and open the security settings. To do this, connect to the router via cable or Wi-Fi, if this can be done on a laptop. Next, open a browser and address bar register the IP of the router. Look necessary information You can find it on the router case or in the user manual. If this is not possible, then press the Windows + R keys simultaneously. In the window that appears, enter CMD and press the “Enter” button.

How to easily find out the IP address of a WiFi router: Video

Thanks to these simple actions we were able to launch command line. Enter the IPCONFIG command in it. Now find the line “Default Gateway”. This is the IP address that needs to be registered in the browser. After this, you will have to enter your username and password. If you haven’t changed anything, then write here admin, admin, respectively, and press “Enter”. After this, you will be taken to the router settings menu. Further actions We will look at the example of the D-LinkDir-615 router. If you have a different router model, then don’t rush to get upset. They all work on the same principle. The only difference is in the design of the interface.

Setting up connection security

So, at the bottom of the screen, click the “Advanced Settings” button. Now there are additional sections. We are interested in the window called “WiFi”. In this window, find and open the “Security Settings” section. The first line is the authentication type. Here you need to set WPA-PSKWPA2-PSKmixed. This mode is supported by the Android platform and provides best security your network.

The encryption key is our password. Here or leave it the same, just look and remember it. Below you will see additional settings. As a rule, everything is installed there by default. But, you can check the “WPA encryption” item. The AES value should be set here. This completes the security setup.

Setting up a router MAC filter

To increase security, each router is equipped with a filter function based on IP and MAC address. Since the IP address is constantly changing, it is quite difficult to filter it, and, as a rule, there are no problems with it. Another thing is the physical address. It is unique for each device and it is impossible to change it in the Android OS. It's possible that somehow you or someone else has enabled this filter, causing your Android tablet or smartphone to not connect to the WiFi network.

How to set up a MAC filter in a router: Video

To check this, go to the settings menu again. In the "WiFi" section, open the "MAC filter" item. Everything here is extremely simple. If you are setting up a home network, then simply turn it off. If for some reason you need to leave it enabled, then depending on the mode in which the filter operates, you will need to add or remove the MAC address of your device from the list. In the first tab you select the filtering mode, in the second you add devices to the list.

If in the first tab you selected “Allow”, then in the second you will need to add all trusted devices to the list. If filtering works in the “Deny” mode, then in the second tab you create a list of addresses that will not be able to connect to the network. You can find out the physical address of a smartphone or tablet running OSAndroid in the device settings in the “About device” section.

Checking the wireless network operating mode

Very often the answer to the question why Android does not connect to the WiFi network is a mismatch in the operating mode of the access point. The fact is that today there are several Wi-Fi communication standards:

802.11b.
802.11g.
802.11n.

They differ in frequency and range width. This, in turn, affects the data transfer speed. In order to seamlessly connect devices that support different Wi-Fi standards to the router, you should set the mixed mode. To do this, go into the router settings. In the "WiFi" section, open the "Basic Settings" item. We are interested in three points here:

Country (region).
Channel setup.
Wireless mode.

First, select the appropriate region (country). After that, set the channel settings to “Auto”. Next, in wireless mode select "802.11 BGNMixed". This is a mixed mode that is supported by any device with a WiFi module.

Setting up a DHCP server

DHCP is a technology that automatically distributes IP subscriber devices to connect to a wireless network. If you disable this feature, you will have to enter data manually. However, given the fact that on Android there is no way to enter the IP address, DNS server and other network parameters manually, it is logical to assume that if DHCP is disabled, the smartphone or tablet simply will not be able to connect. Therefore, it is important that this feature remains active.

To check this, we will need to go into the router settings again. Now we are interested in the “Network” section, in which we need to enter the “LAN” item. These are the settings local network. In the DHCP server section, in the “Mode” line, you need to set the value to “Allow”. You don't need to configure anything else.

It is worth noting that after making any changes to the router settings, they need to be applied and saved, then reboot the router and try connecting Android again.

Often a mistake Android connections devices to a wireless network is a banal freezing of the access point. This can happen due to power outages, heavy load when downloading large files to high speed and so on. The solution is simply reboot the router by unplugging it from the outlet for 7-10 minutes.

Now you know why the Wi-Fi network on Android does not connect. Of course, other errors may occur, but solving them requires an individual approach.

Why Android won't connect to Wi-Fi: Video

I have more than 10 years of experience in the IT field. I am engaged in designing and setting up commissioning works. We also have extensive experience in building networks, system administration and working with access control and video surveillance systems.
I work as a specialist at the Techno-Master company.

Video on the topic:

Bezprovodoff team 12/18/2015 12:54

Hello. First, I would like to know what network we are talking about. Are you using a router? Or did you distribute the network from a computer? You can do the following on your computer: Go to the hardware manager, open the “Network adapters” folder and remove everything that is there from it (you must first download all the necessary drivers). After that, open a command prompt with administrator rights and execute in it following commands:
netsh int ip reset (if you can’t register it or an error pops up, then write “netsh int ip reset c:\resetlog.txt”).
route –f.
netsh interface reset all.
netsh interface ip reset resetlog.txt.
netsh interface ipv4 reset resetlog.txt.
netsh interface ipv6 reset resetlog.txt.
netsh winsock reset.
netsh firewall reset.
After each command, press “Enter”. Reboot the PC. Now we install new drivers.

Maxim 01/12/2016 15:35

Wifi works in Russia, when traveling abroad it works until you turn it off on your smartphone or leave the wifi reception area, then it stupidly doesn’t see more than one network at all, resetting to factory settings helps, but then everything goes in a circle - turn it off, turned on wifi and you won’t find any networks anymore

Bezprovodoff team 01/13/2016 20:53

Hello. The fact is that your phone uses WiFi protocols that are designed for Russian standards. Overseas countries may use other standards and protocols that your device does not support. Or, on the contrary, some kind of protection is installed at the access points themselves. In general, these are normal phenomena. If something doesn’t suit you, you can try to flash your phone with the official service firmware, which was written for the country in which you have problems with Wi-Fi. That's the solution. And when you return home, you will need to upgrade to Russian firmware (although this is not a fact, European firmware often works more stably in Russia than Russian ones).

Ksenia 02/07/2016 11:50

Hello. I have a Lenovo a 60+ phone. Wi-Fi stopped connecting. it just says “error”... In the morning I reset the phone settings.. at first Wi-Fi seemed to turn on but didn’t see any networks... at all. I turned off Wi-Fi... I’m trying to turn it on again... “error”. I downloaded the “wi fi fixer” program... it didn’t help..

Bezprovodoff team 03/03/2016 19:10

Hello. It is quite possible that the WiFi adapter itself has burned out. But, you can first try to flash the phone. The firmware must be installed from the official service firmware. If the firmware does not help, then take it in for repair, since you are unlikely to be able to replace the WiFi yourself. To do this you will need to disassemble the phone.

Ilya 03/10/2016 08:34

Hello, my Wi-Fi router TrendNet has a filter by MAC address, on laptops it works fine, when I entered the MAC address of the Samsung Galaxy A smartphone, the phone does not connect, when I turn on sharing on the router it works fine, I thought that the MAC address was entered incorrectly, I checked it correctly. Please help me, what should I do to make the filter by poppy address work?

Bezprovodoff team 03/16/2016 16:13

Hello. Have you tried setting up the router according to the instructions? There could be many reasons, try connecting your phone to another Wi-Fi point first to make sure that the problem is not with the phone. If the phone connects without problems, then this means that the problem needs to be looked for in the router settings. If he doesn’t want to either, then most likely there’s something wrong with the phone.

Bezprovodoff team 03/16/2016 16:26

Hello. If phones don't see dots at all Wi-Fi connections, then there is a problem with the phone settings. It is best to contact the technical support of the phone manufacturer, since we do not know the operating features of this phone model. We also recommend reading the article, it may help you.

Bezprovodoff team 03/16/2016 16:50

Hello. You need to look at which list you entered your phone into. By setting a filter by MAC address, you can not only allow access of devices to the router, but also deny it. If everything is done correctly, but the phone still does not connect, reset the router settings and try setting everything up again. Also, after installing the filter, you need to delete the access data on your phone and try to connect again. And if nothing helps at all, then you need to look at whether you need filtration at all and whether it will be of any use.

Bezprovodoff team 03/19/2016 10:55

Hello. If your tablet and phone have stopped connecting to WiFi networks not only at home, but also to other access points, then the problem should be looked for in the tablet and phone. But, since there is nothing special to look for there, try resetting to factory settings. If it does not help, then most likely you will have to reflash it. But before taking drastic measures, you should simply restart your devices and check if they are connected to the network. The fact is that sometimes network cache and other debris accumulate in devices, which interferes with connecting to networks and causes many other problems. A reboot usually resets all of this, but not always.

Zhenya 03/22/2016 21:27

Help, today I reset the settings to factory settings on the Lenovo A850+ because I was getting an error (the error was not related to wi-fi), everything seems to be fine, but it does not connect to wi-fi. It says authentication (error), I also checked that it will connect to another wi-fi without problems. You can use a laptop and another phone via wi-fi (which does not connect), and everything works well. I hope you read it, I really need help.

Nikolay 03/30/2016 13:29

Doesn’t connect to Wi-Fi, this is a Wi-Fi not a router but an access point via a laptop phone DEXP Ixion ES 5, tried everything and failed android system, I tried everything, it doesn’t work, it says getting an IP address or is it also enabled, android 4.4.2 Kitkat, what should I do, please tell me? At my friends’ place everything connects on Wi-Fi, but at home it doesn’t matter, everything was fine, everything connected...

Bezprovodoff team 04/01/2016 19:14

Hello. There are such mistakes. Try checking for updates (if you installed the official one) service firmware). If not, try flashing your phone back to Android 5 (Lollipop). As I understand it, you did the firmware manually, and did not update the software, as required by all the rules? Maybe the firmware has become crooked, maybe the modem in the firmware is incorrect (drivers for the modem). There are many reasons, and it can take a long time to figure it out. It’s easier and faster to install back the previous firmware in which everything worked.

Bezprovodoff team 04/01/2016 19:23

Hello. There are no settings on the tablet, there is no way to reinstall drivers, and so on. Just restart your tablet to clear some cache. I also recommend rebooting your router. The fact is that the router could “remember” your tablet, but since you reset the parameters on the tablet, some configurations could have changed, and therefore a conflict is created in the router (it seems that the tablet is already in memory, but it has changed a little due to the reset ). If simply rebooting the router does not help, then update software on the router. It’s quite easy to find and download new software on the router manufacturer’s official website.

Bezprovodoff team 04/01/2016 19:24

Hello. There could be many reasons for this. For example, if the router operates in 802.11n mode, and the phone only supports the 802.11g standard, then the phone will not be able to connect to home network, since these are two different standards that do not interact with each other. They operate on different frequency ranges. In addition, the type of data encryption can also be different. For example, the router encrypts information in WPA2 mode, and the phone can only recognize WPA encryption. You need to go into the router settings. and in the WiFi settings, see what mode is set (ideally, you should set it to 802.11b\g\n mixed). Also, in the security settings, disable encryption (that is, make the network open). If the phone connects to open network, then the problem is precisely in the encryption method. In this case, try setting other encryption methods (ideally, you should set WPA-PSK\WPA2-PSK). It is possible that the router itself needs to be flashed (software update). Here you need to look in person, figure it out, try different variants. There are descriptions on the site various errors and their solutions, as well as instructions for setting up routers and wireless networks. Read the articles, you will find answers to all your questions.

Alexey 04/04/2016 22:00

Hello, the problem is that my tablet does not connect (the second one is fine), it says the protection is saved, etc., I click connect, there is no response. But it connects to other networks without problems, and the Internet supply does not stop, and you do not have to reconnect. What to do?

Bezprovodoff team 04/08/2016 09:27

Hello. There can be many reasons, but if you say that you distributed the network from a laptop, and everything worked before, but now it’s broken, then everything can be solved quite simply. First, go to the official website of the laptop manufacturer, find the same laptop (by model and modification or by serial number) and download drivers for WiFi and network card(LAN). Let setup files will be on PC, we will return to them later. Now open the device manager and delete everything that you find there from the “Network adapters” folder. After that, launch the command prompt with administrator rights and do the following: https://www.youtube.com/watch?v=T0vOyaSeY3Y. After this, restart your computer. Now install the new drivers that you previously downloaded from the official website and restart your computer again. Everything should now work. Now you need to reconfigure network distribution from your laptop -. Three methods are described here, but only two will suit you - setting up distribution on the command line or using a program Virtual Router Plus. The program, in fact, configures the same command line, only in automatic mode. I myself set up the command line manually (and recommend it to everyone), but if this is too difficult (setting up sharing and distribution), then Virtual Router Plus is the best option for you.

Bezprovodoff team 04/08/2016 09:30

Hello. This error may appear due to various reasons. It is possible that your router uses a data encryption method that is not supported by the tablet. To check this, go into the tablet settings and remove the password (that is, make the network open). If the tablet connects without problems, then the problem was the password or encryption type. As a rule, routers have the ability to choose the encryption method. It is best to set “WPA-PSK\WPA2-PSK mixed”. This is a mixed encryption that supports almost any device (tablets, smartphones - old and new). Also, a similar error appears due to an incorrectly entered password. Here you just need to be careful. There are other reasons, but first try to check what I have already described. On the same site there are articles about how routers are configured and solutions to various problems. Look, read. If anything, ask questions, I will be happy to help you :)

Denis 04/09/2016 21:52

Hello. I have Chinese tablet Nomi A07000 (Android 4.2.2), year of operation. I used to get Wi-Fi well, but at some point it started to glitch: it takes longer to connect to the router than usual, there is Internet, everything is fine, but after a minute or two the network disappears. When you connect again, it connects again, there is Internet again, and then the network also disappears. On some attempts, the tablet stops seeing networks altogether. Rebooting doesn't help, nor does resetting to factory settings. The tablet may not see any of the Wi-Fi networks for a long time (several hours or even a day), and then suddenly, when connected, it sees and connects. Usually, if a connection with the router is established, it is broken after a couple of minutes, although there were times when everything worked well for an hour. Sometimes it happens that the tablet connects, logs in, receives an IP address, but the Internet does not work, and after a minute the connection is lost again. But in lately In general, he rarely sees any networks. I tried changing the router settings - modes (b/g/n/bg/bgn), changing the channel and its width - to no avail.

Tell me, please, what could be causing this behavior of the tablet? Is there a hardware problem here or can flashing the firmware help?

The problem associated with flashing is that the native firmware for this tablet cannot be found anywhere, those who flashed it used firmware from another tablet, Intex Echo, but some write that after installing this firmware they have no Wi-Fi at all It worked, although everything was fine on the native one, and there were problems with the sound.

If this is a hardware problem, then could it be that the problem is in the antenna (poorly soldered or something like that), or do these symptoms clearly indicate a faulty Wi-Fi module? And if the problem is in the Wi-Fi module, is it replaced on tablets?

Thank you in advance.

Julia 04/13/2016 07:53

Hello, I have a tablet, it does not connect to Wi-Fi, it says: “Wi-Fi disconnected...”. This is the second day already. It can be turned on and off freely from the phone. P.s. and it seems to be stuck, but the rest, like Bluetooth, everything works. Tell me what to do

Arthur 04/13/2016 21:55

Hello. Please tell me about the problem. Android 4.4 (tablet) sees all networks but does not connect to any network, not to home, not on the street (even without a password), not in a cafe, etc. Writes saved! But if you turn on Internet distribution from your phone, then everything connects instantly) How to fix this? Thank you.

Erzhan 04/15/2016 14:00

Hello, we need your help!
I have speed wifi low(max 1 kb/s), so I can’t access the Internet in any way. Just 2 days ago wi-fi was working great. me and my two brothers. Now I just can’t access the Internet, but everything works for them. Strange. I looked at the settings: there is no proxy. DHCP active. The date and time are correct (set by the network). I am in South Korea Now. I tried to reboot my smartphone ( samsung note 3) and on/off the wi-fi router (ipTIME Extender2 300 mlMbps Chinese) - none of this helped. It's my weekend now. And without the Internet it’s very boring at home. Help with clear instructions or a specific link. Otherwise I didn't find my problem.

Evgeniy 05/07/2016 08:12

Not stable work Wi-Fi connects for at most an hour, Wi-Fi on the phone works and disappears, in the settings Wi-Fi on the phone says connected, the connection is good, the speed is the same, but the Internet pages on the phone do not open until you turn off the router from the power socket again for a while and again it will work for an hour and everything will be all over again)))) that maybe the rest of the devices are working stably tablet dr. Phone other than my meizu redmi note 3

Bezprovodoff team 05/19/2016 10:31

Hello. I can’t tell you exactly what the problem is, because you have to look and check. It could be like software problem with the firmware, or a hardware problem with the antenna or the WiFi module itself. It may be enough to disassemble the tablet and clean the contacts, or maybe you will have to replace the entire WiFi module. Again, I can't say whether the firmware will help. All this needs to be double-checked. I can say one thing: if resetting to factory settings did not help, then most likely you need to disassemble and check the contacts and the WiFi module itself. You can still check and clean the contacts, but you will not be able to check the functionality of the module at home. So, my advice to you is to take it for repair.

Bezprovodoff team 05/19/2016 10:34

Hello. It may be that the WiFi module has failed. This happens sometimes. Try doing a factory reset on your tablet. If it doesn’t help, you can try to flash it, but I would recommend that you immediately contact service center, since it is possible that the problem is hardware and the WiFi module itself will have to be changed.

Bezprovodoff team 05/19/2016 10:37

Hello. I can recommend you to do a factory reset - http://v-androide.com/instruktsii/obsluzhivanie/sbros-android.html. Most likely it's some kind of software glitch. Also look in the router settings, perhaps someone has limited your access speed (such functions are in the router settings). Unfortunately, I don’t know any other options.

Bezprovodoff team 05/19/2016 10:56

Hello. If we look at what you described, we can conclude that it is the phone that is unstable. It might be worth doing a reboot. If it doesn't help, then do a factory reset. I also recommend finding more new firmware for the router and update the router software. I don't know any other options. You have to see it in person and try it different methods solutions.

Bezprovodoff team 05/19/2016 10:57

Hello. If you reset the parameters, then all that remains is to try to flash the gadget - http://v-androide.com/instruktsii/obsluzhivanie/proshit-esli-ne-vklyuchaetsya.html. Also read this article - http://v-androide.com/instruktsii/obsluzhivanie/kak-proshit-android.html. But it is possible that the problem is not in the firmware, but in the hardware. That is, it may be that the WiFi and Bluetooth module itself “died”. Therefore, it is best to take it to a repair shop so that everything can be clearly fixed for you.

Alexander 05.25.2016 11:38

Hello. I have this problem. Two ZTE V5 phones connected to it wi-fi hotspot. Then wi-fi only works on one or another phone. For example, I turned on wi-fi and surf the Internet - everything is fine. If you turn on wi-fi on another phone, the Internet does not work on the first one, but there is a connection in the settings. If you turn off the module on the first one and turn it on again, the Internet appears, but disappears on the second and vice versa. Other devices work normally, no dropouts or failures are observed. What can be done in this situation? I'm already tired of turning it on and off. No matter what I tried, nothing helps.

Danya 05/30/2016 08:44

Hello, once (I was not at home) I connected to wi-fi and then, already at home, I found out that I could not connect to my wi-fi network. Those. I type the password - click CONNECT - it connects for a few seconds - and writes CONNECTED - after which, after working for 3 seconds, it DISCONNECTS INDEPENDENTLY. All this happens on the prestigio phone.
P.S. before that everything was fine.
HELP

Hello. Apparently both phones have the same configuration and IP address numbers. That is, the network parameters coincide and interrupt each other. Try simply manually setting up WiFi on each of the phones (that is, you will manually set the IP address). The main thing is to set different IP addresses. I don't know any other options. If this doesn't help and the phones still conflict, then I don't even know how to fix it. Maybe it’s worth flashing one of them so that the firmware on the phones is different.

Bezprovodoff team 06.16.2016 11:33

Hello. Try deleting all previously connected networks on your phone so that there is no information about them. And then reconnect to your home WiFi network (you will have to re-enter the password). There are no other parameters on the phones to configure anything. If this does not help, then do a factory reset. This will completely reset all network parameters and the phone will return to its original state.

Sayat 06/21/2016 21:00

Hello! I have a Samsung Galaxy Grant 2. I had Wi-Fi at home. For a year the phone connected to Wi-Fi, everything worked perfectly. But a week has passed since the phone stopped logging into Wi-Fi. I didn't change anything in the phone or router. My laptop and 2 other phones connect to Wi-Fi and everything works. Mine finds the network, I click connect, it thinks and writes “Saved, Protected” I did everything: changed the channel, encryption, reset the settings to factory settings. After I reset the settings to factory settings, Wi-Fi worked but not for long. After an hour or 2 it turned off. But I noticed that Wi-Fi doesn’t work during the day, but at night it works, what’s the matter, sometimes it turns off, of course, but in general it works at night. My router is Huawei. I dropped my phone before this problem occurred. Could this be the cause of the problem.

Natalya 06/28/2016 16:35

Hello) I have the same problem, I changed the floor of the phone to S4, broken screen was, after the repair I took it and can’t turn on wi-fi now, I press the button, it seems to be stuck, the same with bluetooth! what to do? Can I fix this myself or will I have to send it back to repair?((

Bezprovodoff team 07/13/2016 21:30

Hello. Are the time and date displayed on the phone up to date? Try setting the region and date in the router too. What exactly did you reset - the phone or the router to factory settings? If you reset the phone and it didn’t help, then I advise you to take it for repair. If the router was reset, then try resetting it on your phone.

Bezprovodoff team 08/10/2016 22:57

Hello. First of all, this message appears in cases where you enter the password incorrectly. Therefore, once again carefully check that the password is entered correctly (do not forget to check the keyboard layout (language) and whether Caps Lock). If everything is correct, but the error still remains, then it is possible that your WiFi network is operating in a WiFi mode that is not supported by the phone. First, try entering the router settings and switching the broadcast channel (in the “WiFi Settings” section). Different channels work on different frequencies, so try selecting different channels, starting with the first one. Another option is if the router operates in 802.11b or g mode, but the phone only supports 802.11n mode. Such standards also operate at different frequencies. In this case, in the router parameters, again in the “ WiFi setup“You need to check if you can select WiFi modes. Check if your phone connects to other wireless networks. If not, then do a factory reset on your phone. If so, it's possible that your router and phone are simply not compatible. In this case, you will have to buy another router. Try removing the network password and checking if the phone connects. If yes, then the problem is with the type of data encryption. In this case, try setting different types encryption and this way you will know which type is supported and which is not.

Hello. The MAC address will be registered when you turn on the adapter. If when you try to turn on wifi adapter does not turn on and the MAC address does not start to be displayed, then the problem is with the adapter. Here it may be necessary to change it, or maybe just reflash it. You have to try both. The thing is that remotely I can’t say for sure. I need to inspect it in person. Try flashing it. If the firmware does not help, then take it for repair to replace the WiFi module. You are unlikely to be able to replace the adapter on your own at home. Therefore, it is better to immediately take it for repair.

Bezprovodoff team 09.21.2016 21:45

Hello. This looks like a software glitch. Just restart your phone. If rebooting doesn't help, you'll have to do a factory reset. The fact is that you need to reset the network settings on the phone and delete the network cache that has accumulated during use. But, you cannot do this manually (as on a computer) on your phone. Therefore, you will have to do a reset to factory settings.

Alexander 09/24/2016 01:14

Please help me with the problem of connecting to Wi-Fi.
Installed at work wireless Internet with access points (SOPHOS).
The system is configured in such a way that upon initial connection it asks to enter the voucher password (the voucher is valid for 1 month or 2GB), which is issued individually to each employee. Further, as they explained to me, the voucher is tied to the MAC address and, in theory, should write off traffic with each subsequent connection.
This is what happens.
However, upon subsequent connection, the device on the Android platform displays a message that the Network is disabled and login is required. You click on it, it pops up with a choice of Wi-Fi networks - you connect, it happens automatic start browser, and it simply loads Homepage. and also a message appears about the need to log into the Wi-Fi network.
Then the message continues to hang, the Internet works, but after a minute and a half it displays a message stating that the device is disconnected from this network and the session time has expired.
And again you need to connect... and so on ad infinitum.
Sometimes devices on the Android platform connect freely without any problems. However, this is very rare and only for a while...
Devices like the I-Phone do not experience such problems.
I can't figure out what the problem is. I sent messages to IT but they are there, I beg your pardon, they are crushing the balls and can’t give me any sense….
If there is a solution to the problem, please tell me. Maybe we can at least point Ai Tishnikov in the right direction...
Thanks in advance.

Bezprovodoff team 10/06/2016 23:54

Hello. What's included? Try doing a factory reset. After updates, various conflicts often arise in the settings of network adapters. If resetting does not help, you will have to roll back the system. But since you most likely didn't do any backup copies system, you won't be able to roll back. Therefore, the only option left is to flash your gadget with the firmware in which everything worked. If you are afraid to flash it yourself or doubt whether it is worth doing, then bring it in for repair.

Bezprovodoff team 10/19/2016 21:50

Hello. Most likely, the problem lies in the way the data is encrypted in corporate network. Android devices are simply not capable of accepting such encryption, since it has a dynamic key. These networks (similar to WPA2-Enterprise encryption) have their own characteristics and differences from conventional WPA2-PSK encryption. Therefore, Android simply does not understand how protection works. The first time you try to connect, you enter a password and the network can be picked up, but when the security system starts changing passwords (and it does this with a certain frequency - it depends on the parameters of the access point), the network is lost and it is no longer possible to connect to it. In general, you can do the following. You can connect your laptop (work laptop) to the corporate network and distribute the network from it to your Android device..html 12/29/2016 09:51

Hello. I bought a new Lenovo A1000, Android 5.0, it connects fine in other wifi networks, but at home it’s different. I have mas address filtering, it sees all other devices, this is also registered and connected, but when I turn on wifi on it, it’s as if there is no network signal, although it’s next to the router. Then if you reboot the router five times, then after half an hour it starts working, but it may not work until the evening. I can't imagine. Help please.
Sveta 02/11/2017 12:56

Hello, please help. We bought a router from all family members. WiFi on the phone is excellent, but on mine the problem is that it switches on and off and lags all day, everyone tried the time over the network, synchronized, rebooted, etc. What is the problem with the BQ magik phone model
Vartan 06/21/2017 14:22

Hello! I’ve been using the Samsung A5 for more than a year. Everything was fine. Wi-Fi recently went down, I’ve been suffering for a whole month, I tried everything and everything. At some point it worked on its own, but it didn’t last long. given time I’m sitting without Wi-Fi. I’m going to file a claim. As I understand, Samsung is a fraudulent corporation, full of consumer goods, and the prices are all over the place.

Before you begin to find out why Wi-Fi or the Internet does not work, you should know (especially for those who have just purchased a Wi-Fi router) that it is not enough to just connect the provider’s cable to the router, you also need to configure it (set up the Internet and Wi-Fi network ). All of the methods described below are valid if Wi-Fi and the Internet were working for you before, and then suddenly stopped or you cannot connect a new device to Wi-Fi. For convenience, I divided the article into two parts, the first is devoted to the inability to connect to a wireless network, the second part will answer your questions if you are connected to a Wi-Fi network, but there is no Internet.

Cannot connect to Wi-Fi network.

Reboot the router.

The first thing you need to do if you have problems connecting to a Wi-Fi network is to restart the router. To do this, simply disconnect the power supply from the router and connect it again after a few seconds. After 1-2 minutes. The device will boot, then try connecting to the wireless network again. To avoid such situations in the future, I recommend updating the router firmware (perhaps the manufacturer knows about the problem and fixed it in the new firmware).

Enabling the Wi-Fi module on the laptop.

Check if Wi-Fi is turned on on the laptop, I won’t turn around, all the ways turn on Wi-Fi I described in the article How to turn on Wi-Fi on a laptop .

Change the wireless network mode.

If you are trying to connect a device (laptop, smartphone) that is more than 5-7 years old, please note that it may not support modern mode Wi-Fi work -n. Therefore, you need to switch the router to an operating mode that is supported by the device or enable mixed mode b/g/n. More details about Wi-Fi operating modes are described. In order to switch the wireless network mode, you need to go to the web interface of the router, go to Wi-Fi settings and select the appropriate mode.

Removing a duplicate network SSID.

One of possible problems Inability to connect to Wi-Fi is a duplication of the Wi-Fi network (SSID). Suppose you come to your friends, their Wi-Fi network is called “Home”, you successfully connected to it. Time passed and you came across the same network name with other friends or at home. The laptop (this also applies to tablets and smartphones) tries to connect to the network using the previously saved password, but it fails because this name is used New Password. To solve this problem, you need to remove the matching network from the list of saved Wi-Fi networks.

To do this, click right click mouse on network icon in the lower right corner of the screen and select "Network and Sharing Center" shared access".

After this, you will see a list of saved wireless networks. If you see that the network you are trying to connect to is in this list, you need to remove it from this list. Select the network and click the "Delete" button. After this, you will need to enter a password to connect to the wireless network.

No Internet via Wi-Fi.

Internet payment check.

The simplest thing that can happen when the Internet is not working is that it’s time to pay for it or the provider is working on it. To clarify the situation, call your provider and find out if you have a debt for the Internet and whether work is being done on the line.

Static IP address.

One of the problems with the Internet not working may be that the registered static address does not have the network settings that are necessary. In this case I recommend using automatic receipt network settings. To do this, you need to go to the Network and Sharing Center. One way to do this is to right-click on network icon in the lower right corner of the screen and select "Network and Sharing Center".

Another way is to use hotkeys + , enter the command ncpa.cpl and press Enter.

It doesn’t matter which method you used, the result will be the same - a window will appear on the monitor Network connections. Next you need to wireless connection press with two mouse clicks, In the status window that opens, select "Properties" in the properties window "Internet Protocol version 4 (TCP/IPv4)"

Problem with the router.

The Internet may not work due to a router failure; the simplest thing you can do is reboot it. There are situations when the router resets the Internet settings, in this case you need to connect to it via the web interface and re-enter the Internet settings, in order to experience fewer problems with the router in the future, I recommend updating its firmware.

Conclusion

In this article, I described all the ways I know to solve problems with Wi-Fi and the Internet. If these methods do not help you, you can describe the problem in detail in the comments and I, together with the readers of this site, will try to help you.

Wi-Fi technology is very widely used in life modern man, because it allows you to easily and quickly solve problems with connecting to the Internet without using conventional wires. This is especially true when using laptops, which can be used to access the Internet in any convenient place thanks to the presence of a built-in Wi-Fi adapter.

That is why the situation when Wi-Fi does not work on a laptop leads to significant inconvenience and even some problems. The reasons why laptop computer Wi-Fi may not work, there are quite a few. It is simply unrealistic to solve the most serious of them on your own without the help of specialists, but there are quite a lot of them that can be eliminated on your own. Let's look at them.

Is the problem with your laptop or router?

A fairly common problem that a laptop has stopped connecting to the WiFi network is not a problem with the laptop itself, but with the settings of the router that distributes the network. Thus, the laptop can be configured correctly, but Wi-Fi still does not turn on precisely because it has nothing to connect to.

To rule out the possibility that this is the problem, you should try to connect to the network from any other device that is equipped with Wi-Fi adapter– from another laptop, smartphone, tablet, etc.

If Wi-Fi does not work from another gadget, then the problem lies in the Wi-Fi router distributing the Internet. If the connection is successful, the problem is in the laptop and before solving it, you first need to determine why Wi-Fi stopped working.

Hardware enable adapter

Based on such diagnostics, it is possible to accurately determine that this problem arose precisely because of the laptop. When Wi-Fi does not work on it, you can try using several methods.

The first one is to check if the adapter is turned on wireless connection on a laptop. Almost everything modern models have indicator lights WiFi work module and for it hardware enable There is special combinations keys

Typically, a lit indicator indicates that the module is turned on. If the indicator does not light up at all or lights up in red, then Wi-Fi is not working precisely because of the wireless network adapter. It must be turned on.

Most often, such indicators are located directly on the keyboard, side or front panel of the device case. Sometimes they are located on the monitor body or near the touchpad.

To enable the module of such a network, press the key combination Fn and one of the system keys F1-F12. The specific combination depends on the laptop manufacturer. Usually on the desired key the corresponding antenna icon is located. If it is not there, then to turn on Wi-Fi you should try pressing standard for specific model combination:
Fn+F3 for Acer;
Fn+F2 for Asus, Dell or Gigabyte;
Fn+F5 on Fujitsu devices;
Fn+F12 on HP laptops.

After pressing the corresponding keys, we check whether the wireless connection module operation indicator lights up or whether it stops glowing red. After this, you should try to connect to the network again. If this does not help, move on to the next step.

Software enablement

When Wi-Fi stops working and turning it on in hardware doesn’t work positive results, it is also necessary to implement it software activation, which is carried out directly from operating system, under which the laptop runs.

To implement software turning on WiFi that has stopped working on Windows 7, 8 or 10, you need to perform the following sequence of actions:

1. On the notification panel, which is located near the clock, select the network connection status icon;

2. From the list that opens, select “Network and Sharing Center” or “ Network settings» depending on the operating system version;

3. The next step is “Changing adapter parameters.”

Among the list of all existing connections, you need to pay attention to the color of the “Wireless” icon. network connection" If your WiFi does not work and the wireless adapter is disabled, the connection icon will not be highlighted. In this case, right-click on its icon, from the opened context menu select the “Enable” item. The color of the connection icon should change.

In this case, the wireless network adapter turns on, all you have to do is find the one you need in the list of available wireless networks and connect to it.

If after such Wi-Fi action which has stopped working continues to be inactive, you need to move on to the next method of solving the problem.

Driver installation and update

Quite often, the wireless Wi-Fi connection does not turn on due to the lack of a driver or when it is very outdated. To determine availability installed driver, you need to select “Properties” from the context menu of the “My Computer” icon, which is located on the desktop or in the “Start” menu. Next, in the window that opens, select the “Device Manager” command from the menu on the left.

In the new window that opens with a list of connected devices, you need to find the name of the laptop’s wireless network adapter. Usually its name is “Wireless Network Adapter” or “ Wireless Network Adapter", along with which the device manufacturer must be indicated: Realtek, Atheros, Qualcomm or something else.

Having found the desired item and right-clicking on it, select “Properties” from the context menu. In the window that opens, there should be an item “Device is working normally.” But even if there is a mark about normal operation device, this is far from a guarantee that it is installed correct version drivers and Wi-Fi turn on correctly. To check it, in the properties window wireless device go to the “Driver” tab and pay attention to the “Development date” and “Supplier” items.

In the event that the supplier is Microsoft or the date of development of the program is several years behind the current one, go to the official website of the laptop manufacturer and download the latest official version drivers.

The same must be done if among the list installed devices There was no wireless adapter.

If the wireless module is present in the list of devices, but is marked in yellow exclamation point, this means that the device is disconnected, as a result of which the network stopped working. In this case, opening the device properties window, you need to click the “Engage” button.

Another reason why Wi-Fi stopped working on a laptop may be that the energy-saving mode is enabled, which prevents the wireless connection from working. To disable it, you need to do the following:
1. Open Control Panel;
2. Select the “Power Options” icon;

3. In the window that opens, select the “High Performance” or “Balanced” mode.

External obstacles to the signal

It's also worth noting that a broken wireless network can also be the result of more than just laptop problems. The wireless signal depends on some external factors which may weaken it. Ceilings, walls, floors and similar obstacles significantly degrade the signal quality of the access point and laptop.

As is known, the signal quality is personal computer is displayed in the form of several marks - the more there are, the higher the quality of the signal. If the wireless connection level is displayed as 1 or 2 marks, then you don’t have to try to use WiFi - in this case it will not work normally.

In this case, you need to move the router closer to your workplace, move workplace closer to Wi-Fi router or buy a new, more powerful router.

If all else fails

If none of the tips given above helped, you can use a simple, but at the same time often effective solution: Restart both the computer and wireless router. Please note that after a reboot, the router turns on for up to 5-10 minutes before it starts distributing the network. Be patient. Also, despite the opinion of many skeptics, sometimes the problem diagnostic function found in the Windows operating system helps solve problems with a wireless network.

Thus, most of the above have been listed existing solutions problems related to the fact that Wi-Fi stopped working on the laptop. Almost all such methods and recommendations can be used by anyone who is faced with similar problem, since this does not require any special skills.
If nothing helps, and the wireless network does not start working, there is only one option left - go for help to a quality service center, where they can solve any problems with the laptop.

If the article did not help solve your problem and Wi-Fi still does not work, write in the comments, I will try to help.

A wireless or WiFi network, in addition to all the features of a typical wired network, allows the user to move freely within the range of a radio signal. The user can stay connected to the printer, access the Internet, use shared resources networks together with other computers and work with the laptop as a mobile device.

IN this document This assumes that the user has already created a wireless home network, as discussed in Creating a Wireless Home Network (Windows Vista), or is trying to connect to a known working wireless network at a WIFI service point.

Before use

Before connecting to a wireless network for the first time, make sure you have the following:

Initial setup of a wireless WiFi network

The first time you connect to the selected WiFi network, you must enter all the information to set up the connection. You can configure your computer to automatic connection when within the network coverage area. Follow the instructions below to set up your WiFi connection.

Note.
The original factory image of your HP computer has all necessary drivers for built-in wireless device and HP Wireless Assistant. If you upgraded your operating system, you must download and install the latest wireless device driver and HP Wireless Assistant for your computer model and operating system. Not all computers have built-in wireless capabilities.

If your computer does not have a factory-installed HP system image, search www.google.com or www.youtube.com for information on setting up a wireless network.

Start your computer and turn on your wireless device.

To turn on your wireless device, slide its switch to the On position. The power switch of the wireless LAN support device, and bluetooth device(if installed), located on the side of the case or above the keyboard, depending on the model. On some computers, the switch is a button on the panel above the keyboard or one of the function keys on keyboard.

The active state of a wireless device on most computer models is indicated by a lit blue light indicator. This indicator is orange to indicate that the device is inactive or disabled. In some the latest models another one is used color scheme, and the indicator light is built into the corresponding function key.

In the notification area of the toolbar, find the HP Wireless Assistant icon.

Once your wireless device is turned on and active, look for the Search for Available Wireless Networks icon in the notification area of your toolbar. If there is no wireless device icon although network cable connected, disconnect the network cable. The wireless network icon should appear.

Right-click on the wireless network icon, click Network and Sharing Center, Setting up a new connection or network, then select Connecting to a wireless network manually.

Rice. : Setting up a new connection or network

Enter the required network security information. This information was used when setting up your home network.

Rice. : Connect to a wireless network manually
- Network name (SSID)
  
  Security type(usually WEP and WPA)
  
  Encryption type ( Additional feature in some types of security)
  
  Security key or passphrase
  
  Start this connection automatically Select this option if required automatic login to the network when the computer is within range of a wireless network.

To check if you are connected to a wireless network, click the search icon available networks to display a list of available wireless networks.

I was always a little surprised by questions like this, in which they wrote that when connected to an open (unprotected) Wi-Fi network, the Internet does not work. Or a phone, laptop, tablet and other devices generally refuse to connect to open Wi-Fi. They asked for some advice on what could be done to solve this problem.

And today, I saw on our forum a message that says that the phone catches an unprotected Wi-Fi, connects to it without problems, but the Internet does not work. Then I analyzed the comments on the site a little, and realized that the question was very popular, and I had not yet written an article on this issue. I will correct the situation now :)

Now, we will figure out why problems arise with connecting to other people’s, albeit open, wireless networks. We will try to find out if something can be done about this, and if so, what.

I want to write right away that we will look at problems specifically with the connection and operation of the Internet connection, through strangers, wireless network, which are not password protected and can be connected to.

All the problems that arise when connecting to your own networks, that's a different story. There will simply be more ways to solve this or that error, since you have access to the settings of the router itself.

No matter how sad it may sound, but if your smartphone, tablet, laptop, etc., does not want to connect to open Wi-Fi, or the Internet does not work after connecting, then most likely there is no way to correct this situation. it will work out. In about 90% of cases, you will have to deal with it. I wrote it somehow sadly :)

Why? Yes, because we don’t know what kind of access point there is, whose it is, how it’s configured, and most importantly, we don’t have access to the settings of this router, because it’s not ours, but a neighbor’s, some store, cafe, etc. etc. I think this is clear and logical.

Here, let’s take for example the question I wrote about at the beginning of the article:

It was posted on our forum, in this topic: .

It’s a good question, but do you think it’s possible to give something substantive to this question? I also think not. Maybe the Internet is simply not paid for there. There is a connection, but the Internet does not work. Standard situation. Maybe there is some kind of blocking enabled, or the phone didn’t like the channel it’s on.

I would highlight two main problems. We will divide the article into them. It will be easier and clearer this way.

Can't connect to an open Wi-Fi network

This is probably the most popular question. On laptops (And desktop computers) , it could be an error " ", or something else.

On mobile devices (phones, tablets), it could be...” (by the way, laptops can also have this “Identification...” problem), " ". There may be other errors.

If you can’t connect, then you need to think about why this network is not protected. Yes, there are people who simply forget to do this, or they don’t need it. They just let everyone use their internet. (this is the case with home access points). But, I am sure that in most cases, there is no password because filtering by MAC addresses(read). Which protects even better than a password.

What can you try to do?

Typically, when connected to unprotected networks, the signal level is not very good. Make sure that the network level is at least two divisions high. Otherwise, connection problems may arise precisely because of a weak signal.

If you are connecting a laptop (regular computer with adapter), then make sure that in the properties of the wireless adapter, in the IPv4 protocol, it is set to receive IP automatically. Like this:

I pointed to Windows example 7. In Windows 8, everything will be exactly the same.

If the problem occurs on mobile devices that run on Android OS or iOS (iPhone, iPad), then I don’t even know what to advise. Except how to monitor the signal level. There don't seem to be any special settings that would interfere with the connection.

Internet does not work when connected to unsecured Wi-Fi

Well, the second problem is when everything is connected, but the Internet does not work.

On a laptop, there will be a status “No Internet access” and a yellow triangle next to the network status (in), but on mobile devices the Internet simply will not work, and the Wi-Fi icon will most likely be gray instead of blue (depends on OS, firmware version, etc.).

How to fix the problem?

If the problem is on the computer, then check the IP settings, as I showed in the screenshot above. Disable antiviruses and firewalls, they may block access to the Internet.

If the problem is mobile device, then check if they are enabled manual settings proxy. How to do this, I wrote in the article (after the heading “checking if the proxy server is disabled”).

In other cases, the problem is most likely on the side of the router itself. Or, your device cannot work with the parameters specified in the router settings.

Afterword

As I wrote above, if the phone does not connect to the network, then you are unlikely to be able to do anything. If it connects, but there is no Internet access, then the same thing. The network is not ours, we don’t know what’s wrong with it, we can’t change the settings. Almost all problems that arise with Wi-Fi are to blame for the access points themselves. And, if you try to fix something, then you need to change the settings in them. Provided that your device works normally with other networks.