Why doesn't my phone see WiFi? Why doesn't my phone connect to WiFi and what should I do? Wi-Fi authentication error on Android

Twitter

Every user sooner or later is faced with the fact that for some reason Wi-Fi does not work on the phone. This article is designed to help you identify the sources of these common problems and find the fastest and most effective way to fix them.

Wireless communication malfunction is usually caused by several reasons:

Incorrect Wi-Fi settings.
Errors in the operation of the router itself.
Incorrect mobile device parameters.
The action of malware or antivirus software.

Below we will look at each item in detail and formulate recommendations for troubleshooting. All of the following is relevant both for Wi-Fi on an Android phone, iOs, and for other operating systems.

Troubleshooting

You can cope with the problem only if you accurately determine its cause. To do this, you do not always need to contact specialists. Many errors that relate, for example, to wireless mode parameters, can be identified independently. If the Internet slows down or works slowly, this may be due to third-party factors: for example, network overload when many gadgets are connected to it. Sometimes slow Wi-Fi is a reason to check the computer itself or the communication line of your Internet provider.

Incorrect Wi-Fi setting

First of all, you should pay attention to how the Wi-Fi access point is configured. To do this, you need to access the router menu through a browser: but you will need to enter a series of characters in the address bar, the combination of which is individual for each device. Usually this data is located on the back of the router, look for the Login and Password lines, they will be needed in the next step.

Enter your username and password. If you managed to gain access to the menu, first of all you should pay attention to the wireless mode parameters. There are a few simple options here:

Channel - Auto, but you can try setting a different channel.
Mode - 11 bg Mixed, but changing the parameter to 11 bg only can give a positive result.
Channel Width - auto.
The transmission speed, if any, is set to the maximum value.
Region has little effect, but theoretically it can be a source of malfunction.

If everything is configured correctly, but the Internet still does not function correctly, you should contact a service center or look for the problem elsewhere, for example, by contacting your ISP. The device may be technically faulty, so it is recommended to check it immediately after purchase.

Router settings

You should check whether it is possible to access the Internet at all. If it is not there either from a personal computer or from another device, it is advisable to check whether the router itself is turned on and whether it is working correctly. Indicators signal this.

The power indicator should be green. Next to it is a system indicator that should blink. The next indicator, WLAN, shows whether wireless is enabled on the router itself or in its menu. Next are numbered LAN ports, to one of which a cable must be connected. Ideally, it should also blink. After them usually comes WAN, the indication of which indicates that the router is connected to the Internet.

In some cases, reconnecting helps.

Incorrect time or date

Wi-Fi on a mobile device may not function well due to such a small thing as an incorrect date - this is one of the first on the list of common causes of Internet problems. You just need to go to the time settings section and set the correct values. It is important to take into account the time zone correctly.

Wi-Fi password error

Another possible reason is the password. If the phone connects to the hotspot automatically, this error occurs when the user changes the password. In other words, the password has been changed, but the gadget itself “does not know” about it and automatically enters the old one. The solution, again, is simple - create the connection again and enter the correct password.

Malware and antivirus programs

Viruses that the smartphone has “caught” on the network can also interfere with the correct operation of Wi-Fi. If you suspect an infection, it would be advisable to install an antivirus program on your phone and run a scan. There are many such programs, but they usually use established brands like Kaspersky and ESET Nod.

The other side of the coin: antivirus and other security programs, such as a firewall, can themselves be a source of problems. The antivirus creates a kind of “shield” to filter traffic, which sometimes affects communications. If after removing the anti-virus software the connection works correctly, in this case you will have to try another software or abandon it.

Software glitches

For many users, wireless communication fails due to incorrect software operation. For example, when the user installs alternative firmware or makes any other interference with the factory characteristics of the software.

Problems with the Android system are also evidenced by other errors in the operation of the gadget - constant, systematic freezes, random shutdowns, and others.

In this situation, you can do a Hard Rest - it will return the system to factory settings.

If the problem is with the phone's firmware, this will help solve it. But you need to know that “non-native” firmware is not deleted in this way.

When the source of incorrect operation lies in the router, you often just need to reboot the router. This is not always easy to do, since some models are not equipped with an on/off button.

If the device itself does not have a reset function, you can simply unplug the cable for 10-30 seconds.

It can also be done through the device menu. The procedure for entering there is described above. This method is relevant if it is difficult or impossible to get to the router itself. The “Reboot” option is located in different parts of the menu in different router models, but, as a rule, on the system settings tab.

If the error in Wi-Fi operation is due to software glitches, you can try rebooting the device. In addition to the standard “Restart”, there are several more radical and thorough methods:

Through the menu: “restore and reset”.
By entering the number *2767*3855#.
Through Recovery Mod - you can call it by holding down “Home”, “Power” and volume down at the same time. Next, select the “Wipe data” section.

Ask a question to a virtual expert

If you still have questions, ask them to a virtual expert, the bot will help you find the problem and tell you what to do. You can talk to him about life or just chat, it will be interesting and informative!

Type your question in the field and press Enter or Submit.

Conclusion

Issues with the functioning of Wi-Fi, as a rule, can be resolved easily and without the involvement of specialists. But it is worth remembering that independent technical intervention can damage the machine to the point of complete loss of functionality. If connection difficulties cannot be solved using available methods, it is better to contact a service center.

Video

Nowadays, more and more often, to access the Internet, they use not a computer or laptop, but mobile gadgets such as a tablet or smartphone. And there is an explanation for this - most of the Internet is used to visit sites, versions of which are designed specifically for small screens (social networks VKontakte, Facebook, Odnoklassniki, Instagram), and you can’t put a laptop in your pocket. It’s good when a smartphone connects to the network via a 3G or GPRS connection, then it does not require additional equipment, but if through a wired provider (for example ADSL or a local network with shared access to the Internet), then the mobile phone first needs to connect to the router, and sometimes the router does not sees the phone or another error is displayed, solutions for which will be discussed further.

By the way, mobile devices have several modes of accessing the Internet, some of which are for distributing it to other connected devices (access point mode).

Smartphone hotspot mode

There is also a 3G modem mode, in which the smartphone is connected to the computer using a USB cable, and thus the computer gains access to the network via a 3G connection.

But this article will discuss the mode of connecting a smartphone to a wireless Wi-Fi router, and the problems associated with this in rare cases.

Connecting your phone to the router

In order to successfully connect a phone with a router into a computer network, the first thing you need to do is make sure that the router is turned on, the Wi-Fi module is active, and the WPS function is enabled (if available).

Found Wi-Fi networks

If the network is password protected, a window will open in which you must enter that password.

The password is entered only once, the phone remembers it and does not require entry during subsequent connections.

If there are no errors, the “Connected” status will appear under the network name. That's it, the phone is connected to the router's wireless network.

If you can't connect

But everything is not always so easy and simple, and for a number of reasons you cannot connect to the network.

Let's look at the most common cases:

1. In the router settings, check the “Hide SSID” checkbox.

Hiding a Wi-Fi network

If a ban is set, the router does not broadcast the name of the network, and to connect to it you need to enter the network name manually in your smartphone;

2. Standards do not match. For example, a router operates in the IEEE 802.11g 2.4 GHz standard, and a smartphone operates in the IEEE 802.11n 5 GHz standard. In this case, they will not be able to work in pairs; the standards must either match or be compatible;

3. The router settings may have a limit on the number of subscribers you can connect, and your smartphone simply turns out to be superfluous.

Limiting the number of subscribers

4. And, as practice shows, a fairly common reason is simply the router freezing. Turn it off and on again, it may help, but it won't make it worse. In this case, try updating the router firmware to a more stable one.

Third party software

We looked at how to connect a phone to a router without the help of third-party programs, only using the phone’s own operating system. But there are programs aimed at helping in this matter. Let's give an example of one of these.

Appearance of the program

The program is called WeFi, you can download it on the program’s official website for free: http://www.wefi.com/download/

I am very pleased with the multi-platform nature of the program. We select the operating system of our smartphone and download the program to the computer, and then to the phone.

Selecting an operating system

For example, select the Android version. After installation on the smartphone, launch the application and see the initial window.

Initial program window

A big plus of this program is its funny animation. The little man at the bottom of the screen is frankly happy when he can connect to the Wi-Fi network without any problems.

But, nevertheless, the purpose of the program is somewhat different, namely to facilitate connection, and WeFi copes with this task perfectly.

Connecting the program

One of the main features of the program is automatic connection to the network with the highest signal level. Of course, it can be configured for a specific network, but still the program is designed specifically for automation. The only thing is that you will have to enter the network password once, but without this there is no way.

Also a very useful function is the continuation of Wi-Fi activity after the smartphone goes into sleep mode.

Setting up the program

The only small drawback of the program is the absence of a blacklist; in some cases it may be needed (for example, in public places with paid but not blocked access).

The full operation of the program can be seen in the video review:

If you have a tablet running Android OS, then most likely it will have a built-in Wi-Fi module. I have never seen a tablet without Wi-Fi; even the cheapest Chinese models are equipped with this type of wireless connection.

The instructions will be presented in two parts, first setting up the modem/router, then connecting the tablet to a Wi-Fi access point. If you have been using this technology for a long time, but just don’t know how to set up Wi-Fi on your tablet, you can skip the first part and proceed straight to the second.

Part 1. Enable Wi-Fi on your modem or router

I assume that you have no idea what this “Wi-Fi” is, how to turn it on and how to use it. If I’m right, then you did the right thing by starting to read the article from here, from the first part. I repeat, if you have everything set up for a long time, you use Wi-Fi on your laptop, then read part 2.

Before you can use Wi-Fi at home on your tablet, you need to enable it on your modem. I hope your modem can create Wi-Fi networks. To make sure of this, read the instructions for the modem or look at its characteristics on the website. Look there for words like “802.11” or “Wi-Fi”. The easiest way to find out is to look for a light bulb on the modem that says “WLAN”. If it is there, then there is Wi-Fi.

If you don’t know what to write here, try to find out this information from the person who set up the Internet for you or from the person who sold you the modem. Alternatively, you can contact your Internet provider.

Further actions depend on your modem model. You need to find a menu item with a name like “WLAN” or “Wireless Lan”. Look on the left in the menu. Check the box next to “Active Wireless LAN” or “Enable”. Set the network security type to “WPA2-PSK”. Enter the name of your Wi-Fi network in the “SSID” field and enter the password of your network in the “Pre-Shared Key” field. Click the "Apply" or "Submit" button to save the settings.

But that is not all. We go to the DHCP settings (this thing somehow distributes IP addresses to everyone who connects to the network). Depending on the modem model, these settings may be in a variety of places. The screenshot shows the possible location of such settings. Although in my Zyxel modem they are hidden along the path Network -> LAN -> DHCP Setup. Enable DHCP if it is disabled by switching the checkbox to Enable. If DHCP is enabled, read the next paragraph. If there are no checkboxes, but there is a list, select the Server item opposite the DHCP item. After turning on, reboot the modem (this can be done either in the modem settings interface, which is where you are now, or simply with a button on the modem.

Part 2. Connecting the tablet via Wi-Fi

All that remains is to connect the tablet to the newly created network. The actions will depend on the version of Android on your tablet. If you have version 4 and higher, the first Wi-Fi item is right in the settings. Turn it on. If you have Android version 3, you also need to go to the wireless connections settings item. And there already turn on Wi-Fi.

After the device thinks, it will show you a list of found networks. Select the network that you created in part 1 (this network will be called the same as you named it in the “SSID” field), or which you already have and to which you have been connecting your laptop for a long time. Next, you will be asked to enter a password for it. Again, enter the password that you specified in the “Pre-Shared Key” field. After all the steps, the tablet should connect to the network, which you will know by the antenna icon that appears next to the clock.

Part 3. Endlessly obtaining an IP address...

The most common problem that users have when connecting a tablet via Wi-Fi is the constant message “Obtaining an IP address.” It doesn't connect any further. There are several solutions to this problem:

Rename Wi-Fi network to English. As suggested in the comments, sometimes tablets do not connect to networks whose names contain Russian letters.

Enable the DHCP server. How to enable it, read above, in the 1st part of this article at the very end.

Change the Wi-Fi network encryption type. You can change the type of protection in the Wi-Fi security settings (this is the same place where you set the password and network name). Try setting some other value in the highlighted items. Don't be afraid, you won't damage the modem with your experiments. For the changes to take effect, reboot the modem.

Manually enter IP addresses and DNS servers in the connection settings on the tablet. When connecting to a Wi-Fi network, in the window where you are asked to enter a password, open the advanced settings menu. And there select IP Settings -> Custom. In the IP address field, enter your address, it looks like 192.168.1.*** (for example, 192.168.1.128). In the Gateway field, enter 192.168.1.1 or 192.168.0.1 (check with your legal provider). All that remains is to enter DNS, which is different for everyone, but which you can also find out from your Internet provider.

If you came to this page, then most likely your phone has stopped seeing the Wi-Fi network, or networks. This could be a home network, somewhere at a party, a public wireless network, etc. The problem is that the network we need does not appear in the list of available ones on the phone. He simply doesn’t find it, doesn’t see it, and accordingly it’s impossible to connect to such a network. There are often cases when a mobile device does not find a specific Wi-Fi network. Which, for example, a laptop sees and connects without problems. Or it may be that the phone does not find any networks, but other devices see them and work perfectly with them.

In this article I will try to collect all the most popular reasons and solutions that can help you solve this problem. As usual, it is first advisable to find out what the problem is: in the mobile phone, or in the Wi-Fi router. If the problem is with the Wi-Fi network at home, then we have a better chance of fixing everything, since we have access to the router itself. If this is someone else's network, then it is unlikely that anything will be done.

Basically, it doesn't make much difference on which device you have the problem. It is clear that this is most likely an Android or iOS phone. Well, maybe Windows Mobile. Since this problem can hardly be solved in the settings of the mobile device itself, it doesn’t matter what device you have. Same thing with the router.

Note! We will look into the problem when the phone doesn't see at all the Wi-Fi network we need, or no network at all. And not when there is a problem with the connection, or access to the Internet after connecting.

I have already written separate articles on Android and iOS devices:

The phone does not see the Wi-Fi router: possible reasons

1 Disable/enable Wi-Fi, restart your phone and router. To get started, just go to your phone’s settings and turn off Wi-Fi. I think everyone knows how to do this.

Then turn it back on.

Reboot the phone:

On Android, just press and hold the power button, then select "Restart". Depending on the manufacturer and version of Android, the steps may vary slightly.
On an iPhone, you need to press and hold the Home button and the Power button. The phone will reboot.

Reboot the router. If you have access to it. It is enough to turn off the power for a minute and turn on the router again. You can perform several reboots in a row. You can read more details.

2 Let's determine what the reason is.

Check all three points:

If your phone doesn’t see any Wi-Fi networks, but they exist and other devices find them, then it’s clear that the problem is specifically with your smartphone. All I can advise is to reboot it and remove the case from it. If he is. If this doesn't help, you can try doing a full reset. If this does not help, you will have to take the device to a service center.
When a device does not find one network, the first thing you need to do is check whether other devices can see it. If they don’t see it, then most likely the problem is on the router’s side. First we reboot it. If this does not help, then see the article:.
If other devices find the Wi-Fi network, but your phone does not, but still sees other networks, then most likely the problem is in the router settings. As a rule, changing the wireless network channel and region helps. Below I will talk about this in more detail.

3 Change the router settings.

You need to go into the settings of your router, go to the section with Wi-Fi settings, and try to set a static wireless network channel and a different region. You can also set the channel width to 20 MHz. It's better to take turns.

On TP-Link routers it looks like this:

More details in the article: . You can experiment with the channel and region. For example, set the region to USA. If you had a static channel set in your settings, then set it to "Auto".

A little about Wi-Fi coverage

The Wi-Fi network is wireless and based on IEEE-802.11. Today, data transfer speeds through this network can reach 600 Mb/s. Wi-Fi coverage has a number of positive aspects, namely:

To connect to a phone, laptop or tablet, you don't need a cable at all. Thus, the amount of cash costs is reduced.
The owner of a phone, tablet or any other portable device is not limited to a specific place. The Internet can be used anywhere the user desires.
Wi-Fi coverage can be used without problems by owners of phones, tablets and smartphones.
Despite the fact that there is only one Wi-Fi network in the room, many users with a phone or tablet can simultaneously connect to it.

Reasons for Wi-Fi connection failures

The reason such as the portable device being too far from the connection point, that is, the router, is not worth mentioning. The main thing is to maintain the required distance. However, if a laptop, phone or tablet is located a few meters from the wireless router and there is no connection, then there are several reasons for this. So here are the reasons:

Older laptop models have a special small button to turn on/off the Wi-Fi connection. Therefore, it is worth checking that the connection is simply turned on. In new models, you can use a key combination, for example, Fn and F2, to enable Wi-Fi access. The device documentation will provide further assistance.

The next reason is damage to the drivers that ensure high-quality operation of the Wi-Fi module. The problem is easily solved by reinstalling the drivers, which can be downloaded using the manufacturer's official website. Other sites may offer low-quality products.
Sometimes the adapter module does not work at all. This is caused by the lack of a special utility that allows you to manage your wireless network. The utility can be found on the manufacturer’s website or installed from the disk included with the laptop.
Sometimes the Wi-Fi connection is completely unavailable. This refers to cases when all devices recognize the network, but one of the devices does not. In this situation, you first need to turn off the router for 10-30 seconds and then turn it on again. Sometimes the problem occurs due to an unexpected failure in the router settings. All you need to do is configure it again. In this situation, the best assistance will be provided by the provider’s support service, because each provider has its own type of settings.
It also happens that the signal is almost imperceptible and is characterized by a low level. At the same time, some devices recognize the Wi-Fi connection, but connection is still impossible. This situation may arise if the router is located quite far from the laptop, phone or tablet.

Theoretically, the cause could be a breakdown of the Wi-Fi module in a laptop or some other device. Moreover, if the warranty is still valid, you can easily exchange the purchased product. If you have an old device, repairs can be very expensive. Therefore, many advise purchasing an external Wi-Fi adapter, which is quite affordable.

So, it is important to remember that it is not enough to just purchase a router, connect the appropriate cable to it and connect to the Wi-Fi network. Setting is required, which is best left to a specialist.

Screenshots:
Description:
So, what to do if this unfortunate inscription appears? There are several reasons for this unpleasant situation and options for getting out of it.
Sometimes the phone does not connect to wifi and says wpa2 protection is saved. This can happen both when trying to connect to a public network or to a home one. This mostly applies to Android devices. This can be done equally by tablets and smartphones.
So, what to do if this unfortunate inscription appears? There are several reasons for this unpleasant situation and options for getting out of it.
Let's start by rebooting the router
1. Select the correct region. To do this, go to the "Wireless" tab and in the "Region" line, select the name of your country and save.
2. Check the wireless network password. Before changing your password, try connecting again. To do this, click on your network and delete it. Then click on the network again, enter the password, make sure it is correct and try to connect.
3. Check the Wi-Fi network operating mode in the router settings. This may be the main cause of the problem. Your tablet or smartphone may simply not support the operating mode of this router. Check whether the device will work with other parameters, remembering to restart the router and disconnect and connect Wi-Fi on your smartphone or tablet after each change you make.
4. Check the security type and encryption type, change the router password in the settings. You need to set the following: WPA/WPA2 – Personal, WPA-PSK version, AES encryption. The PSK password must consist of eight digits. Then we save the new settings, reboot the router and disconnect and reconnect the phone. Don't forget to do the same on other devices running on the same wireless network.
5. Change the working Wi-Fi channel. Of course, this rarely happens, but it’s worth trying to experiment with the channels to be one hundred percent sure.
6. Change the width of the connection channel. To do this, you need to go to the router settings. In the “wireless network” tab, change the value opposite the “channel width” line, save the changes and reboot the device.
In conclusion, answering the question why an Android phone does not connect to wifi, writes saved protected, it is worth noting that this could be both technical problems and a number of errors associated with forgetfulness or inattention of users. There is an opinion that the reason lies in the Android OS itself, or rather in small flaws that cause various unpleasant moments. But if it happens that there is a problem with your Wi-Fi connection, you can successfully deal with it using these tips.

Sometimes a problem arises such as not being able to connect Android to a wireless point. How to solve this problem? Find out in this article!

And so you came to visit or are in a cafe, or perhaps you bought a new router and configured it to distribute the Internet via WI-FI, but your Android smartphone or tablet does not want to connect to the network or does not even see it! Don't worry, there is a way out!

Possible problems and solutions

1. If Android sees the network, but cannot connect to it, make sure that you enter correct password!

2. If Android sees the network, but cannot connect to it - maybe Android does not support protection type installed in the router, change the type of protection (read router settings below)

3. If Android does not see the network, make sure that WI-FI network is functioning, reboot the router (on/off)

4. If Android does not see the network, perhaps Android does not support WI-FI standard

5. If Android sees the network, but cannot connect to it, restart Android and the router

6. If Android sees the network, but cannot connect to it, install a special application on the device from the Google Play store - Wi-Fi Fixer. After installation, restart Android and if the Wi-Fi Fixer application does not start, launch it yourself, then try connecting to the access point (you do not need to enter any settings into the application)

7. If Android sees the network, but cannot connect to it, although the password is entered correctly - perhaps Android does not support the WI-FI standard on which the router operates (read below for setting up the router)

8. If you have custom firmware installed on your Android tablet or smartphone, then this may be the problem, reinstall it to the official one

9. The opposite advice to the previous one, if the official firmware is installed, then you should change it to custom (for example, CyanogenMod), since it is possible that the WI-FI driver has already been updated

12. Perhaps you have a Dlink router?

Setting up the router

First of all, you need to get into the router settings.

Go to router settings

To do this, it is better to use a computer, as well as the FireFox or Internet Explorer browser. Let's open one of them. Next, you need to find out the entry address, which can be found by knowing the network gateway.

This address must be entered into the address bar and go. Next, you will be asked to enter your username and password, which, as often happens, is located on the bottom of the router case.

Setting up WI-FI

1. First of all, if Android does not connect, you should switch the WI-FI channel to auto

2. Change the WI-FI transmission mode standard to Mix or G only

3. It is also worth checking the number of allowed device connections to the wireless network

4. Try changing the network security method, change the encryption type from open to WPA

5. Another point worth paying attention to is the enabled DHCP server, which allows you to give internal IP addresses on the network. If you disable the DHCP server, you may experience problems connecting to WI-FI and not only with Android devices!

6. Make sure that the MAC filter is not installed in the settings!

A MAC address is a personal (individual) serial number of a network device.

Depending on the router, there may be white lists of MAC addresses or black lists.

Blacklisted- devices that are prohibited from entering the network, but other devices can.

White list- only those devices that are in this list and no other devices can connect.

To find out the personal MAC address of Android you need to go to

Settings -> About smartphone (Tablet) -> General information

Try disabling the MAC address filter to resolve the connection problem.

If, after all these settings, Android does not connect to WI-FI, then it is worth updating the firmware either on your smartphone or tablet, as well as on the router; in rare cases, there is simply incompatibility, then nothing can be done!

The connection process is accompanied by the following comments from the operating system:

Connection;
Authentication;
Saved, WPA protection

When unsuccessful authentication of the user-provided password occurs authentication error.

First of all it's worth re-enter your password manually and try to establish a connection with the access point. After making changes to the router settings, you must delete network from the memory of an Android device, which can “remember” the previous identifier. This is done quite simply:

open on your smartphone Wi-Fi settings and find the desired network;
then press on it with your finger and select the item that appears “ Forget»;

Even when choosing " Change» Authentication problems are not always solved, so a better solution would be reset all settings.

The problem of connecting old devices is solved regime change. It comes in three types:

b– up to 11 Mbit/s;
g– up to 54 Mbit/s;
n– up to 600 Mbit/s.

Old devices does not work in 11bgn mode it is mixed, since they do not support the last one - n. The issue is being resolved installation 11bg mixed, after which reconnection is made without errors.

Infinitely obtaining an IP address

This problem may be due to the fact that the router disabled DHCP server parameter. Moreover, such a situation sometimes turns out to be simply consequence imperfect operating system.

The location of the parameter in the router interface may differ depending on the manufacturer. TP-Link, for example, takes it out a separate item main navigation menu.

The fastest way worth trying is reboot router. Then it will reset all its parameters to default values and the DHCP server should turn on automatically.

If the connection is still unavailable, most likely the problem lies directly in the device on Android. To solve it you need:

After the above changes, the connection should work properly.

Problems with the router

Sometimes a smartphone can simply do not see the desired network. This is often due to settings channel - a certain subfrequency, which is a kind of road, a route between the device and the router.

The router can support up to 13 such “roads”, and some mobile devices only 10. Thus, if, for example, channel 11 is set in the router settings, the smartphone will simply does not see this “road”, and therefore ignores this access point.

Changing this parameter is not difficult. For example, in devices manufactured by TP-Link this is done as follows:

When there are a large number of access points in the environment, it is better to set the “ Auto" Then the router will independently select a free one from the available channels. If there are not many networks around, it is worth choosing a specific channel, which will allow speed up the process traffic exchange. To solve the problem with connecting an Android device, you need to select a channel within 10.

Recently I helped one of my blog readers solve a problem with a wireless network. The gist of it was that his phone did not connect to the WiFi router. Moreover, it was not just some cheap Chinese Lenovo, but an expensive (albeit also Chinese) fashion iPhone 6S. We spent a lot of time, tried many different options and, in the end, found a solution to the problem. Looking ahead, I will say that the “root of evil” was the incorrect configuration of the home router.
After all this, I decided to combine all our actions into one universal instruction - what to do if a tablet or phone does not connect to Wi-Fi, does not see the network, or sees it but cannot connect to it. Go.

1. The phone does not see the WiFi network

The most common reason is a mismatch between the region settings for the router and the tablet or phone. The fact is that almost all home routers and access points that are sold in Russia have the “Russia” region set by default, which uses 13 radio frequency channels. But phones, especially those brought from abroad, have a different region by default, which may have 10 or 11 channels. This is exactly the problem that most often occurs with iPhone smartphones and iPad tablets that came to us from the USA. The funny thing is that you can connect to the router, enjoy the benefits of a wireless network for some time, and one day discover that your phone does not see the router’s WiFi network. The solution is very simple. First, reboot your router. With a high degree of probability, after a restart it will occupy another radio channel and everything will work fine again. To avoid falling into the trap again, you can go to the router’s settings by entering its IP (or) in the address bar of the browser. After this, you need to go to the main WiFi settings:

In the “Region” field, try replacing “Russia” with the value “USA”:

You can do without changing the region. In the “Channel” list, replace “Auto” with the value 1 or 6:

As a rule, after this, iPhones no longer lose the wireless network and everything works like clockwork.

2. Can’t connect to Wi-Fi

In this case, usually all devices see the wireless network without problems, but when they try to connect to it, they are simply rejected. There are several options here:
- Endless connection
This usually happens when the communication standards used on the devices do not match. For example, the router is forced to use 802.11n, but the smartphone uses 802.11b or 802.11g. Or vice versa. Therefore, it is best to set the router to a mixed type - 802.11bgn.

- Infinite authorization
This very trouble can happen if the password on the router is changed, but the old one remains in the smartphone’s memory, which is why it cannot connect to the WiFi network. Try to find it in the list of available ones, click on it and select the “Delete this network” option in the menu that appears.

After that, select again from the list and try to connect.
It doesn’t help - then go to the security settings of the router and try setting the “WPA2-PSK” standard with “AES” encryption.

If this does not help, completely disable security and observe how the connection proceeds.

- The message “Obtaining an IP address” appears
This usually happens when the DHCP server is disabled in the router settings. We go to the web configurator, find the LAN or DHCP section and make sure that the DHCP server item is set to “Enable”.

Sometimes you may get stuck in obtaining an IP address due to the fact that a static IP address is registered in the Wi-Fi settings on the phone or tablet itself. To check this, open the “Settings” -> “WiFi” section and click on the connected network. In the menu that appears, select “Change”. A window like this will open in which you need to check the “Advanced” box. Next, make sure that the “IP address” field contains the value “DHCP”.

3. There is a connection, but no Internet

Start by checking whether other phones, tablets or laptops work through this Wi-Fi. Are they working? Then we go into our device, namely “Settings”>>>”Wi-Fi”>>>”Change network”:

We check whether work through a proxy server is enabled.
This option is also possible, although very, very rare, when an incorrect or non-working DNS server is assigned when connecting. It’s easy to check - in your phone, click on the desired network, select “Change” in the menu, check the “Advanced” box, “Manual” IP address and enter the full IP address from the router’s subnet, mask and gateway. But in the DNS servers field we enter the following values:

8.8.8.8 77.88.8.8

On an Android phone or tablet it looks like this:

These are public DNS from Google and Yandex. They are 100% working, which will completely eliminate this option.

If none of the above methods help, then try this. Take your device and check it on another wireless network - from a friend, acquaintance or comrade. If there the phone or tablet does not connect to the WiFi router either, then the problem is clearly in your device and it must be taken in for repair.

Quite often, Android users are faced with the fact that their smartphone or tablet does not connect to wifi, it says “saved”, but there is no connection. Alternatively, it should. Most often, this situation occurs due to malfunctions or errors. Before changing settings on your phone or tablet, you need to make sure that in your router:

the correct region is set;
the correct time is set - time desynchronization will not allow the device to create a timestamp;
the wireless signal operating mode is configured;
The encryption type is specified and supported by the device.

To make sure that you are entering the correct connection data, you can view the saved parameters in the router settings. To do this, from any connected device you need to go to the browser, enter 192.168.1.0 or 192.168.1.1 into the address bar (as a rule, it is registered on the router itself). In the menu that opens, find the SSID and PSK lines.

The reason why an Android smartphone does not connect to WiFi and says “Saved” may be a change in the encryption type, SSID or password.

What to do if, when connecting to WiFi, it says “Saved”, but there is no network
Regardless of whether the device is a tablet or a smartphone, the troubleshooting methods are the same:

Check the router settings. What to pay attention to was described above.
Reboot the router. Even if the router settings are correct, rebooting can help solve the problem: the connection will appear and the system will stop reporting the error.

Re-create the connection on your phone or tablet. To do this, you will need to delete old data.

In general, the last point, when it does not connect to Wi-Fi with WPA2 protection, but writes saved, is quite simple:

Delete. You need to go to Settings, click on the wireless connections tab (depending on the version, the name may differ). Having selected the desired connection, hold your finger on it and select delete in the menu that appears.
Reboot the device's wireless module. After this, all available networks will be searched.
Pass authentication. When a network is detected, you will need to re-enter the password. If the network is hidden, then you can add the SSID yourself. To do this, go to Settings - Wireless connections - Additional settings - Add new. In the window that appears, you need to write the name (SSID), security protocol and password.

These instructions should help if WiFi does not connect on your phone and it says “Saved” and “Without network access.”