Troubleshooting problems connecting Wi-Fi networks on laptops. Android doesn't see any Wi-Fi networks
Many users sooner or later encounter this problem. There may be various reasons why Wi-Fi on a laptop does not work. Perhaps you recently installed a new operating system, purchased new router or reflashed the old one and others.
In general, if you also find yourself in this situation, and you are unable to connect your laptop to a Wi-Fi network, then in this article we will look at several methods that should help you connect your laptop to Wi-Fi.
Let's start with the simplest - reboot the router. To do this, you need to unplug the power supply, wait 10 seconds and plug it back in. Then restart your operating system.
Network diagnostics
Do network diagnostics. Although many are quite skeptical about this advice, but sometimes it can help too. Click right click mouse over the wireless network icon in the tray and select "Diagnosing problems". Windows will scan and if it finds a problem, it will suggest ways to solve it.
If after this, the laptop still does not see Wi-Fi, check is it turned on on the laptop? wireless adapter WiFi.
Find the wireless network icon on one of the F1-F12 buttons, for me it’s F2. Also, on the button itself, near the power button or touchpad, there should be a light indicator that indicates that Wi-Fi is on. Specifically in my case, if Wi-Fi is turned off, the indicator light is on. To turn it on, press the combination Fn+F2.
You also need to check that it is turned on LAN card. To do this, right-click on the wireless network icon in the tray and select "Network and Sharing Center".
In the next window click "Change adapter settings".
If you have "Wireless network connection» highlighted in grey, right-click on it and select “Enable”.
After this, the icon should become colored. This indicates that the network adapter is enabled and the laptop can connect to Wi-Fi networks.
Checking drivers
Check drivers network adapter . Click “Start” and write in the search bar "Device Manager" and follow the found link.
Expanding the list "Network adapters". The required adapter will be called something like: model name and “ Wireless Network Adapter" (may be written Wi-Fi).
First you need to make sure it is turned on. Therefore, right-click on it, and if there is an item in the menu "Engage", click on it.
Now pay attention that there is no yellow one near the adapter Exclamation point or a red cross. If you have it as in the figure below, then with installed drivers Everything is fine. If you have one of the mentioned signs (in the picture I indicated with an arrow what it might look like), you need to install or update the drivers.
If your laptop came with a disk with drivers for installed devices, use it and reinstall the driver. If this does not help and the laptop still cannot connect to Wi-Fi, go to the official website of your laptop manufacturer, download the drivers for the network adapter from there and install them.
You can read about installing drivers in the article:.
Also, to update or install missing drivers, you can use the free Driver Pack Solution program.
Checking the WLAN AutoConfig Service
This service is responsible for wireless network adapters, and if it is not running, the adapters will be unavailable, and accordingly, the laptop will not be able to connect to Wi-Fi.
Go to the Start menu and write “Services” in the search bar. Let's move on to the relevant point.
Then we look in the list "WLAN AutoConfig Service", right-click on it and, if it is disabled, click “Run”.
Checking router settings
Router settings can go wrong, and not always through the user’s fault. Perhaps it was just password changed network access.
If your wireless network icon is muted and has a yellow star next to it, click on it with the mouse, select the network and try to connect to it, after finding out if the access password has changed. This may be the reason.
Now let's go to the router settings. There is already a detailed article on this topic on the website; by clicking on the link, you can read it.
If, for some reason, they are lost for you, you need to adjust them. In my case, you need to follow the link "Wireless Network Settings Wizard". You may have slightly different menu items, it all depends on the router model, but you need to do the same.
Make sure you check the box "Enable wireless connection".
Also pay attention to the section network information(LAN). You may need to change the settings here according to your provider.
I hope that at least one of the tips helped you solve the question: why the laptop does not connect to Wi-Fi, and now your device is successfully connected to the network.
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Discussion: 13 comments
I tried everything to connect to the network after the children stumbled on something on the computer... And this article...... It wasn’t even an article, but a picture that helped solve the problem for a teapot like me.. All I had to do was press two buttons to connect to the F5/Fn router and everything worked….
Answer
Hello, a user’s comment helped me, attach it to the article because I’m probably not the only one, this is what he writes
SALEX 12/03/2017 at 00:00 I tried everything: I have firewood and wi fi is on and in the device manager everything is fine, but the network is gone. Finally I found a way out: “You go into the control panel, find hardware and sound, it has the name “Configure default mobility settings”, go there, a window appears” Windows Mobility Center “, in the Wireless network column you need to activate the “Connect a wireless network” button and a connection with the router will immediately appear. After connecting, enter the password and enjoy. Good luck.”
A large number of subscribers who use mobile communications quite often ask questions about network problems, one of which is: “Why can’t my phone see WiFi?” It is now impossible to imagine that any of mobile devices remained without access to the Internet using this network. It is also natural that even at home users have a home WiFi network.
Why don't mobile devices see WiFi?
The WiFi network is now considered very convenient, accessible and mobile in almost all corners globe. She has many other advantages. For example, you can see quite significant savings on installation, deployment and expansion of the Internet. In addition, WiFi communication fully guarantees the compatibility of a range of equipment of various types and many users mobile communications at the same time in the same coverage area. But, unfortunately, not all mobile device users have a chance to use this type of communication. And, of course, this begs the question: “Why doesn’t the phone see WiFi?”
Solving the Network Visibility Problem
Naturally, first you need to determine the reason why the phone stopped seeing home WiFi, that is, check whether the connection is present at all. To do this, you can perform simple manipulations, for example, see if there is a connection to WiFi from other types of mobile devices. You also need to reboot the adapter.
Possible reasons why the phone does not see WiFi may be as follows: the user's mobile device must have the appropriate equipment - a special chip. Also, a large number of users, surprisingly, do not know how to configure this network on their own.
To solve the problem of why the phone does not see WiFi, first you need to look at the settings of the router itself. Typically, a WiFi router automatically selects a given access point (channel). A large number of mobile phones begin to experience minor problems when this same channel is above 12. You should change the channel itself to a value from 1 to 9, reboot the device and try to connect to the network. Naturally, you shouldn’t forget about the settings of the mobile phone itself.
And if everything is configured correctly, you need to check the operation of the router and mobile device. You can also connect to a free access point somewhere to check. And if the phone sees the network, then most likely WiFi problem lies in the home router.
Network connection problem for Lenovo phones
Very often, users of phones like Lenovo also experience network connection problems. The problem arises that Lenovo phone Doesn't see WiFi. The device itself provides the ability to work on channels from 1 to 11. Often the router is configured for a channel higher than 12, it turns out that there is incompatibility mobile device and router. If changing the channel helps for other mobile devices, then Lenovo needs to perform other actions.
First you need to find the build.prop file on your phone and replace the line ro.wifi.channels with ro.wifi.channels=14. This manipulation can be performed directly on the computer in any text editor by transferring the original file via USB. After this, you need to restart both the phone and the router. After all these steps, the mobile device should see the network.
WiFi programs for your phone
In order to use all the capabilities of your mobile phone when connected to the network, they use numerous software. Currently available big choice WiFi programs for your phone. Such applications are used to turn a mobile device into an access point to a WiFi network. The main thing is to choose good and inexpensive traffic mobile internet, because, in principle, the mobile device will turn into a gateway between the 3G and Wi-Fi network. And this will allow the device to connect to world wide web. Programs are divided by type of mobile phone platform, the most popular are Android, iOS, Windows Phone.
Android based WiFi programs: WiFi Tether and WiFi HotSpo
Nowadays, all multifunctional telephones used to access the network social services or communicating on the Internet, practically become unnecessary if the phone no longer sees WiFi. When solving this problem, many realized that WiFi Tether is considered a very easy to use program for the phone for Root Users. The only thing that is not so popular with users is that it requires rights Root access, but it pays off with easily accessible features and ease of use. By default this program sets WiFi point V open mode, connected without a password. Therefore, before using this program, you need to select an encryption protocol and specify the key to connect the network.
Another one WiFi program for the phone it is WiFi HotSpo. It is also easy to use, but it has much fewer functions than WiFi Tether, but when using this particular program, your mobile phone does not need to be “rooted” in advance. And what is attractive about this application is that it has such a function as USB Tethering. It allows you to use your phone as a wired modem when connected via USB to a computer.
iOS based WiFi programs
Unlike programs for Android platforms, similar utilities for iOS they are not so common. But still there is good program WiFi for an iOS phone, and that's MyWi. This application allows you to turn your mobile device into a modem. But for this to become possible, Apple devices you need to "unlock" it first. The application is very good opportunity monitoring. And if suddenly the connection is not established, or it works with interference, MyWi has the ability to select another channel. Its only disadvantage is that it is paid.
Program for Windows Phone
In one of the first versions of phones based on the operating Windows systems Phone it was impossible to use tethering. But in subsequent models of mobile devices, this option was built into the system itself. It can be blocked depending on what specific model phone is in use. The maximum connection to a network access point with active tethering is no more than five other mobile devices.
The problem of connecting mobile devices to the network and its solution
It is a very common belief that quite soon a WiFi network may replace one of the available connections- mobile. But this raises one problem. It is still not possible to roam on a global scale. After all, this network is this moment has a small radius of action. And problems arise in the form that the phone does not connect to WiFi.
Nowadays, this network is already quite widespread everywhere. Developers such as Samsung, Zyxel, and Hitachi were among the first to produce phones with network support. Also, some time later, other manufacturers began to develop such phones.
Today, the communication standard is considered probably the most inexpensive, and many providers provide these services for free. But you don’t always have the opportunity to take advantage of a wireless network, and sometimes the question arises of what to do if your phone doesn’t connect to WiFi.
It happens that a mobile device sees the network itself, but does not want to connect to it. This especially often happens when the phone does not see home WiFi. If in places common use, where the network is provided, such problems have not arisen before; often the solution lies not in the phone itself, but in the home router, in its settings.
When solving such a problem, it is not necessary to turn to professionals; you can fix everything yourself. To do this, you need to go to the device settings and change them. This can be done using any Internet browser. You need to dial the router's IP directly. These are the designations: 192.168.1.0 and 192.168.1.1. Next you need to find the DHCP section and check the Enabled section, in other sections - Default Gateway and Primary DNS - you need to enter the router's IP.
Thus, if all actions are performed correctly, then the issue should be resolved. This method helps protect data exchange, that is, it makes it possible to set a password for a network connection. Only those users who are allowed to connect to it will connect.
Hi all! As I already said, I work as a sys. admin at an Internet cafe, and naturally I deal with computer equipment And local networks.
So, recently my Aunt called me and asked me to come set up wi-fi D-link router, which she just bought at the store. I arrive, set it up, everything is fine. Aunt is happy. Surf the Internet on a netbook via Wi-Fi
But it was not there! The next day he calls and says the phone doesn’t see wi-fi and the laptop doesn’t see wi-fi! It only finds some neighbors’ access points and that’s it, well, I come, I think, let me check the router at home, I take it home and connect it. Everything is ok, everything works! I'm shocked =) I come back to Auntie and connect it again, it doesn't work... So I went to a friend and it worked for him too... Then I started rummaging through the settings of the router, but I couldn't find anything.
Then my Uncle comes into the room and says there is a security company downstairs, maybe their equipment is blocking them? I think for sure! The problem is there, you won’t see Wi-Fi Aunt And I’m leaving...
But a few days later, 1 more person called me with the same problem! And after a long time I found a solution to this problem! In this article, I will now explain everything step by step how to solve this problem!
In our wifi time A router has appeared in almost every apartment, and when you turn on the router in a neighboring apartment, your Wi-Fi Internet may disappear (everything will work fine through the cord in the computer).
Solution
I’ll show you using wi-fi as an example. router router D-link DIR 300
The problem was that when setting up the router, the Wireles channel is selected by default automatically (auto), shown in the screenshot:
We need to go to the router (web interface), if you did not change the local IP address when setting up the router, then it remains the default 192.168.0.1 , write this IP in the browser and go to Web interface router.
We go to the item as in the screenshot and change the channel, set a number different from the one set automatically (I always got it the first time and everything started working).
If you came to this page, then most likely your phone has stopped seeing the Wi-Fi network, or networks. It could be home network, somewhere away, 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 advisable to first find out what the problem is: mobile phone, or Wi-Fi router e. If there is a problem 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 more 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.
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 Android versions, 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 in more detail.
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 full reset settings. 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.
You need to go into the settings of your router, go to the section with Wi-Fi settings, and try to set static channel wireless network and other 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".
Other problems with detecting Wi-Fi networks
I also noticed that people often write that they can’t see the phone Laptop Wi-Fi. As I understand it, the problem occurs when distributing the Internet from a laptop or PC. In this case, I advise you to first make sure that the laptop distributes a wireless network. For example, view from other devices. You may have started the access point incorrectly. This is where the article will come in handy. Bring your phone closer to your computer.
The next case is when problems with Wi-Fi appear after the phone has been repaired. For example, after replacing the battery, screen, glass, case, etc. In such cases, I advise you to immediately take the phone to the workshop where it was repaired. Since the master most likely did not connect the antenna or the Wi-Fi module itself.
Well, there is no need to rule out hardware failure. Everything breaks down, and the module that is responsible for connecting to Wi-Fi is no exception.
As usual, you can leave your question in the comments, or share useful information on this topic. I am always happy to answer your questions and grateful for additions to the article.