I recently discovered that on my new laptop running Windows 8. My first thought was: “Why is Wi-Fi glitchy when everything is fine on the other laptop?” In the end, I simply turned Wi-Fi off and on again, but then I noticed that it shouldn’t be this way and I had real problems with Wi-Fi on my laptop.
I immediately entered “” into the search, and as a result I got a million forums where everything was blurry. After thinking a little, she added: “ Why does WiFi turn off on a laptop?“, but here everyone kept saying that set up the router. In the end, I came to my senses and began to look for a solution to the problem with Wi-Fi on my laptop myself.

Why does WiFi turn off on a laptop, what are the options?

In case you simply , then it’s too early to worry here. Perhaps your WiFi on your laptop keeps disconnecting due to a poor Internet connection. Another reason why WiFi turns off on a laptop may be that there are too many obstacles between the laptop and the router. But, if you notice that you have , then there may be other reasons:

1. The Wi-Fi on the laptop may have disappeared due to a connection failure with the DNS server.
2. , it’s easy to check the Internet through another laptop or smartphone.
3. It is possible that Wi-Fi on the laptop is disconnected due to a defective module.
4. Or perhaps you simply have a power saving mode, which is why WiFi on your laptop is constantly turned off in order to save battery.
5. The drivers on your network adapter are outdated and therefore WiFi periodically disappears.

The first three options are easy enough to check if you have a second laptop or tablet with Wi-Fi. In my case, the problem was in point 4.

Wifi on my laptop keeps disconnecting, what should I do?

Method 2. How to fix the problem if Wi-Fi on the laptop turns off?

There is a second solution if WiFi on the laptop constantly turns off:

What to do if Wi-Fi on your laptop still turns off?

If your WiFi periodically disappears, you need to update the drivers; you can do this by going to the properties of the network adapter:

31

Another way to solve the problem of WiFi not working is to try manually set DNS parameters on the router - the same ones that were prescribed above on the phone. This is done in the admin panel, in the settings section for connecting to an Internet provider.

This is how it looks in ASUS routers with new firmware - “Internet” section, “Connection” tab. Check the box to deactivate automatic selection of DNS servers and provide the following information:

Or from Google: DNS1 - 8.8.8.8, DNS2 - 8.8.4.4
Or: DNS1 - 77.88.8.8, DNS2 - leave empty.

In TP Link routers, this setting is in the “Network > WAN” section, click the “Advanced” button at the bottom of the page, check the “Use the following DNS servers” checkbox and enter the same values.

Likewise, if WiFi does not work via D-Link (“Basic settings - WAN”)

WiFi still not working?

If, after applying these settings and rebooting the router, WiFi still does not work on your phone or laptop, then let’s pay attention to two more parameters.

First - wireless network operating mode. There are several common WiFi standards that differ in data transfer speed - B (up to 11 Mb/s), G (up to 56 Mb/s) and N (up to 150 Mb/s). If your router is set to the modern “N” standard, and the adapter of the connected device does not support it, then you will not be able to connect to your WiFi. If you are not sure which one is right for you, use “Mixed Mode”

Another parameter - MTU. It is responsible for the size of a data packet transmitted over the network in one block without dividing it into smaller parts.

In the above screenshot from the TP Link router, you can clearly see the default value - 1480. On Asus, you need to scroll down the page in the “Internet” (or WAN) section - we will see the value 1492, which was also the default.

The funny thing is that I took these pictures from routers that were alternately connected to my provider with a PPPoE connection type, that is, for the same thing, different models chose a different value. Moreover, for each type of connection (Dynamic or static IP, L2TP) different values ​​are entered into their firmware. Therefore, to be sure, I would simply recommend calling your provider and finding out what specific MTU values ​​are optimal for your Internet.

I will give examples of MTU on other models:

Old D-Link interface

And one more setting on the router that may interfere with adequate Wifi operation - country, time and date. It would seem like a small thing, but under certain conditions it can also prevent you from connecting.

Why won't my laptop connect to WiFi?

The second group of reasons why WiFi does not work on a laptop or phone is incorrect configuration of the network parameters on the device. If you have already tried all of the above and are sure that the problem is not in the router settings, then let’s try to do something directly on the laptop itself.

1. First of all, make sure that your laptop has a WiFi module at all. If you don't have it, you need to purchase it.

2. If you still have it on your laptop, then check whether it is turned on. This is usually done with a button or slider on the case, or with a combination of hot keys (Fn + WiFi icon)

You can also do this by going to “Control Panel > Network and Internet > Network and Sharing Center > Change adapter settings” (on Windows 7) and double-click on the “Wireless Connection” icon to make it active.

3. If this icon is not in the section, that is, the computer still does not see the adapter present on it, then.

4. After this, when you click on the network connections icon in the lower right corner, a list of available networks should appear.

5. If after this wifi still does not work on the laptop, then we do all the steps from the first section, and also configure DNS manually on the laptop.

This is done in the TCP/IP settings (Control Panel > Network and Internet > Network and Sharing Center > Change adapter settings > Right-click on Wireless connection > Properties > Internet Protocol version 4 (TCP/IPv4))

6. Another setting that can help overcome the problem is to go to the “Networks and Internet > Manage Wireless Networks” section in the “Control Panel” on your computer. Here find the desired wireless connection, right-click on it and go to “Properties”.

Here we open the “Security” tab and click on “Advanced options”. Try checking the "Enable Federal Information Processing Standard (FIPS) compliance mode for this network" checkbox. Then save the settings.

7. If everything is connected and configured, the wifi adapter is detected by the system, but it still cannot find available networks for connection, then download drivers for it from the manufacturer’s official website. Then go to Windows Device Manager and remove the device. Then install the drivers again.

Why else might WiFi not work and the phone not connect?

And a few more ways to solve the problem when it comes to a smartphone, phone or tablet.

A possible reason may lie in the choice of radio channel for your wireless signal. I talked about it in detail in the article about it, so I won’t explain for a long time how to set it up. And here it is worth noting that modern routers support up to 16 channels, while the older standard, which smartphones adhere to, had only 11 channels. If your router is set to automatic channel selection mode, then it can easily switch to channels 12 or 13 (13 channels are allowed for use over WiFi in Europe), and accordingly, the phone simply will not see it. So if you want a constant and stable connection on all devices, configure the channel on the router manually from 1 to 11.

If your phone is on Android, I want to disappoint you a little - the Android kernel does not always work correctly with the WPA2-TKIP encryption type, so if you have this type configured, then this may be the cause of constant problems with the Internet on your phone. This is especially true for cheap Chinese products.

If Wi-Fi does not work on your phone, then this article will help you quickly solve this problem and use the wireless network again. Often, many smartphone owners have little understanding of the settings of their devices and do not know what can cause problems with Wi-Fi. However, faults can be hidden not only in the mobile device, but also in the Internet access point - Wi-Fi router. We will consider both cases within the framework of this instruction.

Why Wi-Fi doesn't work on your phone: possible reasons

All problems can be divided into two groups according to their origin:

1. incorrect settings on the smartphone that interfere with data transfer from the access point;
2. Incorrect settings on the Wi-Fi router, due to which the mobile device cannot connect to the wireless network.

Let's consider all cases in more detail

The Internet on the phone via Wi-Fi does not work due to a malfunction of the device itself in the following situations:

1. Failure of the wireless network adapter in the smartphone;
2. Incorrect settings in the device menu.

In the first situation, you need to take your smartphone to a repair shop so that specialists can restore the functionality of the adapter (often it comes out of its connector when shaken or dropped) or replace it with a new one. If Wi-Fi stops working after repair, then all the blame lies entirely with the service center.

In the second situation, you can try to configure your Wi-Fi connection yourself. To do this, go to the settings menu.

Depending on the manufacturer and operating system, you should select the “Wireless Network” section.

Next, click turn on Wi-Fi

and select your home router from the list of found access points.

If your smartphone does not see the Wi-Fi router at home, but connects to other modems, then the problem is with your router.
If this does not help and the Internet still does not work on your phone via Wi-Fi, then you can try doing a Hard reset or simply rebooting your mobile device.

To do a Hard reset, dial *2767*3855#. Attention! In this case, all data from the phone’s internal memory (contacts, photos, videos, programs, settings) will be deleted. Therefore, do not forget to backup or copy them to your computer.

We figured out why the smartphone doesn’t see the Wi-Fi network. What should you do if your phone connects to the router, but still doesn’t access the Internet?

Let's try to solve this problem.

Why doesn't Wi-Fi work on my phone after connecting?

If your device connects properly to the wireless network, but does not want to access the Internet through a mobile browser, then you need to reconfigure the router. Carefully review the list of blocked devices in the modem settings - perhaps your mobile device is included there.

Also check out our detailed article on this topic:

In one of the previous articles, we looked at the very popular problem among laptop computer users, and we described in detail how to cure a device from network blindness.

However, another situation is no less relevant - when the laptop normally recognizes all available wireless networks, but the Internet via wifi on the laptop periodically disappears, and users can only guess when the connection will “fall off” again.

And in this article we will tell you why wifi on a laptop constantly turns off, and what to do if the Internet goes out for no apparent external reason?

Laptop loses wifi network: possible reasons

In most cases, a loss of Internet connection via Wi-Fi can be attributed to one of two “scenarios”:

1. 1. (the Wi-Fi icon on the laptop disappears and a “yellow triangle with an exclamation mark” appears) and appears automatically - without rebooting the router - within a few minutes.

This type of error can be compared to a mobile network while traveling - when the network disappears and then appears. The example is quite simple, but it gets the point across correctly.

1. 2. WiFi connection disappears and remains inactive until the router is rebooted.

Everything here is quite simple: in most cases, the reason that a laptop loses the network lies in a malfunction of the line, router or its firmware:

• - if the gaps are constant, contact your provider’s technical support service;
• - if the problem is on the router side, update the firmware or try on another router.

To test the router, you can set up another network (friend, neighbor, etc.) and evaluate its performance.

So, if the Internet on a laptop via wifi disappears before the router is rebooted, updating the firmware/replacing the router, or contacting the provider’s technical service will help.

But if the laptop does not pick up the wifi signal well and loses/finds the network every 5 minutes without any intervention, you will have to give the computer a “comprehensive examination”. There are many possible reasons for such a problem, and in order to eliminate the problem you need to “make the correct diagnosis.”

Why does Wi-Fi crash on a laptop?

1. 1. The connection is broken when the network is under load.

For example, a torrent is turned on, a movie is downloading, and online games are being played on a nearby device. Those. The router is working at full capacity, simply cannot cope with the load and “breaks” the network.

It is logical that after the connection “falls”, open Internet tabs in the browser are closed, downloading/downloading stops - the load on the router drops, and the Internet connection, as if by magic, is restored.

In this case, the solution might be:

• - replacing the router with a more powerful one;
• - limiting the amount of traffic consumed;
• - delimitation of the maximum permissible load for connected devices.

1. 2. A “loaded” wireless network channel is selected.

You can use special utilities: for example, use the “inSSIDer” program.

Based on the received data, select the number (from 1 to 13) of a free channel and save the settings.

Please note that many devices do not support channels numbered greater than 10.

1. 3. Another reason why wifi on a laptop keeps dropping out may be a problem with the drivers for the network card/wifi adapter. You can check the driver version in Device Manager:

• - open “Device Manager” with the command “devmgmt.msc” or through “My Computer” - “Management”;
• - in the “catalog” of devices, find “Network adapters”, select the one you need by right-clicking the mouse and open “Properties”;
• - in the window that opens, go to the “Driver” tab - all information about the installed driver version will be presented there.

Now download the new version of the driver from the official website or use third-party programs (“ ” or “Driver Genius”), install the updated driver and restart the computer.

1. 4. Problems with the wifi connection may be related to the power distribution on the laptop itself. In Control Panel, find the “Energy Management” or “Power Options” section.

Open the section “Advanced settings” - “Wireless network adapter settings” - “Power saving mode” and select “Maximum performance” (and in the line “On battery” and “On network”).

Now in the “Device Manager”, open the “Properties” of the adapter and go to the “Power Management” tab, there should not be a checkmark in the line “Allow the computer to turn off this device to save power”, if there is one, accordingly, uncheck it and restart the computer.

1. 5. Perhaps, before Wi-Fi began to disappear (to clean dust, replace components, etc.), and the “wifi module” was physically disabled.

And during subsequent assembly, the module contacts were broken or loosely connected.

To fix the problem, check the integrity of the module contacts and the reliability of its connection.

In addition, if the laptop has stopped connecting to wifi (previously connected), it is worth checking the integrity of the Internet cable from the provider.

An interesting incident happened the other day, which prompted me to write this article. I got my hands on a brand new, just purchased Hewlett Packard HP 15-AC052UR laptop with G8 already pre-installed. The owner is a modern man and really wanted to try the new Windows 10 operating system, so he asked me to update. No sooner said than done. The update procedure went without a hitch, but then the troubles began. The first thing that caught my eye after logging in was that the laptop did not see the WiFi network. In the list of connections, there was a red cross on the adapter icon. There was no reaction to any attempts to somehow turn on the adapter. Well, let's fix it. Looking ahead, I will say that I solved the problem and it was very specific. But using this case as an example, I want to make a small guide on what to do if Wi-Fi does not work on a laptop.

Step 1: Is the WiFi adapter turned on?

As practice shows, the cause of more than half of the problems with the wireless network on laptops, netbooks and ultrabooks is that the network card is turned off. How can I check this? Let's start with the Wi-Fi power button - almost every laptop has one. It can be in the form of a separate button or slider, like this:

Or combined with one of the F1-F12 keys:

In the latter case, to turn it on, you need to press this button in tandem with the function key Fn. If the adapter turned on successfully, the indicator on the case should light up. It can be made separately and marked with an antenna-shaped icon, or located on the power button:

If the laptop does not react at all to pressing this button, then most likely you do not have a driver installed for function keys. In order to download it, go to the manufacturer’s official website, open the “Support” or “Downloads” section and enter the laptop model in the search bar. In the results found, we look for software for the function keys, download and install.
Let's check.

Note: If you have a modern laptop, then it may have a button like this “On the plane”:

It was made by analogy with smartphones and tablets to disable the radio module. When it is turned on, an icon in the form of an airplane appears in the system tray instead of the network icon:

It must be disabled, otherwise the laptop will not see the wireless network and will not be able to connect to it.

OK, the hardware network card is enabled, but Wi-Fi does not work! Did you enable it programmatically? Let's check.
We look at the tray icon. If it shows an asterisk:

Then skip step 1 and step 2 and go straight to step 3. When there is a red cross on it:

This means that the network is turned off. To enable it in Windows 10, there is a separate switch located in the “Settings” -> “Network and Internet” section:

By the way, for me it did not move, or rather, when I tried to move it to the “On” position, it returned to the “Off” position. and I clicked on the “Configure adapter settings” link.
There is no such thing in Windows 7, 8 or 8.1, and therefore you will have to go to Windows connections. Press the Win+R key combination and enter the command ncpa.cpl:

Find the “Wireless Network” icon in the list of connections. It's gray ? Then right-click on it and select “Enable”.

If the WiFi adapter icon is not there at all, the driver is most likely not installed.
For me, everything was much sadder - the WiFi adapter was active, but there was a red cross on it.
Let's move on to the next step.

Step 2. Is the Wi-Fi driver installed?

Very often, after reinstalling Windows, users forget to install some drivers or install them but the wrong ones. Of course, the network card will not work in this situation. Let's fix it.
We go to Device Manager, find the “Network adapters” section and look at what’s there. There must be at least two points. The first is a regular Ethernet network card, the second is wireless.
If there is only , then look - Above in the Manager there should be an unknown device with an exclamation mark. This is your adapter, for which you now need to download the laptop WiFi adapter driver from the manufacturer’s website and install it.
I had the driver installed, so I decided to look at its status: I right-clicked and selected the “Properties” menu item:

If everything is in order, then on the “General” tab in the “Device Status” field there should be a line “The device is working normally.”
If some error is displayed there, then you should first try to reinstall the driver. To do this, right-click on the adapter again and select “Delete”. After this, you need to restart the computer, go to Device Manager again and see if the driver is installed.
This did not help me and I decided to update it. I downloaded the latest version from the Hewlett Packard website, in Device Manager, right-click on the device and select “Update drivers”:

The version has been updated, the device works fine, but WiFi on the laptop still does not work. What to do?
In the end, this is what helped me. On the official website, in the list of available downloads, I saw that for my laptop model there is a BIOS update that fixes compatibility issues with Windows 10. Download the utility, run it and wait until it works and reboots the system:

After this, the laptop's wireless network started working.
Note: You can install updates either manually or through . Each manufacturer has its own application for this. For example, for Hewlett Packard it is HP Support Assistant. The application will connect to the server and check for driver updates. If there are any, you will be prompted to install them.

Step 3: Can the laptop see the WiFi network?

The hardware has been tested - let's move on to the software. Very often, users complain that the laptop does not see the WiFi network. The cause of such a malfunction may be in the laptop or in the router that distributes Wi-Fi. There is no third option. How to determine the culprit? It’s very simple, left-click on the network icon in the tray and look at what’s in the drop-down menu.

If the laptop sees other people's networks, but does not see its own, you need to check the router.
If it doesn’t see any network at all, go back to Steps 1 and 2, since the problem is most likely a hardware one.
For the purity of the experiment, you can use any mobile gadget - a tablet or smartphone - and see if it connects normally. It will immediately be clear where to “Dig”.

As a special case, you can consider the option when a computer cannot connect to a wireless network due to an authorization error. If you have connected to it before, then in this case you should try to remove it from the list of known ones and connect again:

In Windows 10, this is done in “Manage Settings”; in Windows 8, you need to right-click on your network in the list of networks and select the “Forget” menu item. If you connect to this WiFi network for the first time, enter a 100% correct password and still reject it due to an authorization error, then the problem is in the router and you need to try making a purely digital key first. If this doesn't help, try reflashing it. In 90% of cases, this allows you to successfully solve the problem.

Step 4. There is Wi-Fi, but no Internet.

A very common problem for novice users. It is usually caused by incorrect Internet Protocol Version 4 (TCP/IPv4) parameters. You can check this as follows. In Windows network connections, right-click on “Wireless Network” and select the “Status” menu item:

In the “Connection Status” window, click the “Details” button. Another window will open, in which we first look at the line “Default Gateway” - there should be the IP address of the router. It is also usually indicated as the primary DNS server.
Now look above, in the line “IPv4 Address”. The IP from the router's subnet must be registered there (you can see an example in the screenshot). But if there is nothing at all in these lines, or an IP from the 169.254.X.X subnet is registered, then this means it was not automatically assigned by the router and was not registered manually.
Click on the “Properties” button and open the “IP version 4 (TCP/IPv4)” item:

Here you need to enter the router address in the “Default gateway” and “Preferred DNS server” fields. You can see it on a sticker on the bottom of the device case (unless, of course, it has been replaced). The mask is usually 255.255.255.0, and in the “IP address” field we indicate any address from the router’s subnet. Click on OK and reconnect.
If after this a message appears that “network without Internet access,” then in this case we go here.

I recently discovered that on my new laptop running Windows 8. My first thought was: “Why is Wi-Fi glitchy when everything is fine on the other laptop?” In the end, I just turned Wi-Fi off and on...

The Wi-Fi network does not work on the laptop because:

• Banal reasons (provider, food, distance)
• The router is faulty or not configured
• Problems with laptop WiFi module
• Network card drivers not installed or bad
• Numerous nuances with setting up Wi-Fi under Windows

This is what we will deal with in this article. Most problems can be solved on your own, and if you read to the end, you can fix 99% of the reasons :) There I also recorded a video where you can clearly see some points.

Who's to blame: the router or the laptop?

In general, the source of the problem can be either the router or the laptop. The easiest way to find out is to connect to the Internet from another device, such as a smartphone, tablet or other laptop. If it doesn’t connect via Wi-Fi (), then everything is clear - we’ll dig towards the router. If it works on the phone but not on the laptop, then the reason is in the laptop, but the router settings may simply be inappropriate.

Simple reasons

No matter how clear this may be to everyone, in practice it turns out that not everyone thinks about banal reasons.

If it suddenly stopped working because of the laptop

First of all, see if the Wi-Fi module is turned on. Many laptops have a special light with a wireless sign:

Accordingly, if the light is off or glows red, then look somewhere on the case for the Wi-Fi module switch:

It may be on the front or side, but on modern devices it is simply a key combination, for example:

For reference, the following are known standard combinations:

• Acer: Fn+F3
• Asus, Dell or Gigabyte: Fn+F2
• Fujitsu: Fn+F5
• HP: Fn+F12

Well, this is true, in general, since it depends on the model, just look for the same drawn icon on the keyboard.

From a simple point of view, restarting Windows can also help.

If Wi-Fi does not work due to the router

Check if the router is working. Maybe somewhere the traffic jams were knocked out or the lights were turned off and it just doesn’t work. Or the power supply moved away from the outlet (to smoke :)), the cat hit it, it doesn’t matter. If it works, then: turn it off, wait 10 seconds and turn it on again. After 2-3 minutes, when the router boots up, check if WiFi is working on your computer/laptop.

If it works after a reboot, but you have to do this several times a day, then most likely you need to look for a new router. Less often, the reason is in the provider or its settings. It’s better to call first and ask why this is happening to you, and name the router model. Maybe he can advise which ones their network will work best with.

Make sure your Internet provider service has been renewed. You can simply call or try to log into your personal account on the supplier’s website. If this is the only problem, then their site will load. Of course, you need to save this address in your bookmarks.

Wi-Fi will not work if you move too far from the router. 10 meters is enough for problems to start. This is if there are walls. And if not, then 15-20 meters may be decisive for most routers and laptops. The quality of wireless network reception can be assessed by the icon next to the clock:

The real reasons for WiFi not working on a laptop

WiFi does not want to work only on a laptop

We look at the network icon next to the clock. If it's a red cross:

This means the Wi-Fi module is disabled. Right-click on the icon and select “Network and Sharing Center”

Find the “Wireless Network” connection. It may have a different name, but the distinctive feature of the wireless network icon is the signal strength bars. Enable the connection with the right button:

Wi-Fi network does not turn on

It may happen that the message “Obtaining an IP address” appears for some time and then the error “Windows was unable to connect to...” appears. The method for obtaining the IP address is probably incorrect. Let's try the following:

Right click on connection " Wireless network -> IP version 4 (TCP/IPv4)»

If some numbers are written in the window, then it’s better to copy them somewhere, in case they come in handy, and put everything on automatic:

Try reconnecting. Still can't see Wi-Fi? Then we set the following settings:

We try 192.168.0.2 or 192.168.1.2 for the IP address, and 192.168.0.1 or 192.168.1.1 as the default gateway, respectively, it should work in one of the options.

No wireless network at all

Most likely the Wi-Fi module driver is not installed. Need to . In Windows 10, simply right-click the Start button and select Device Manager. Here we carefully look for problematic devices:

If you observe a similar pattern, i.e. there are a lot of devices with exclamation marks, this means that you recently reinstalled Windows and did not install any drivers at all. So not only will your Wi-Fi not work, but half of everything won’t work at all.

You need to install all the drivers. If there is a disk with drivers from the seller, then insert it and agree with everything that the wizard suggests. If not, then you need to read the article about automatic.

If the picture is simpler, with only “Network controller” and/or “Ethernet controller” with exclamation marks, then go to the laptop manufacturer’s website, section “ Support -> Downloads -> Software and Drivers", this is approximately, variations are possible. You need to find the model of your laptop, it is written on the back cover. Next, go to the driver download section, select your operating system and its bit depth ().

Among all the drivers you need to find something with the words “Wireless LAN”

Download and install. The most popular manufacturers of Wi-Fi chips: Broadcom, Intel, Realtek, Atheros. You may find drivers from several manufacturers for your laptop. It’s just that different chips can be installed in different revisions. How do you know which one you need? The easiest way is to try them one by one, but in general, using the AIDA64 program, you can look in the “Network -> PCI/PnP Network” section:

The screenshot shows that the Wireless network card is Broadcom, and the cable (Ethernet) is Realtek.

For select Lenovo laptops

If you are the “lucky” owner of one of the Lenovo devices with network Broadcom installed, then I know that in Windows 8/10 you have serious problems with WiFi: the Internet works for a while, then the connection falls off, you have to connect again, and so on all the time. There is only one way out, but it is there: install the version driver 5.100.245.200 .

To change the driver, go to the device manager, right-click on Broadcom -> Update driver:

In the next window, uncheck “Only compatible devices” and click “Have from disk”

But at this step you need to specify the path to the folder with the unzipped file. We ignore warnings that the driver is not suitable and agree with everything. If after these steps it only gets worse, then just go to Broadcom properties in the task manager and do “ Driver -> Roll back driver…»

What if the network card is not in Device Manager

It may be that the network card does not even have an exclamation mark in the list of devices. This means that the Wi-Fi module has jumped out of the connector or burned out. You can fix it if you disassemble the laptop a little. Here you can see recommendations for a specific laptop, I recommend it on YouTube.

Everything works, but the list of networks is empty

In this case, the switch that I wrote about at the very beginning of the article may be turned off. But it could also easily be that someone forgot to connect the antenna to the wifi module. Maybe when it was cleaned from dust, or something was changed, in short, you need to disassemble and connect the antennas. Also try updating the driver to the latest one.

Disappears after waking up from sleep mode

In Device Manager, go to the properties of the wireless adapter, go to the “Power Management” tab and uncheck the “Allow the computer to turn off this device to save power” checkbox.

Incomprehensible glitches, does not connect to Wi-Fi

Perhaps the network parameters on the router have changed, and the created Wi-Fi profile is old. You need to delete it and find the network again. On Windows 10:

Go to “Network Settings”

Click “Manage known networks”

To delete a profile, “forget” the network

Then we connect to WiFi as for the first time. For any version of Windows, this method also helps to delete a profile:

1. In the search for the Start menu, enter “cmd”, launch it with the right button “Run as administrator”
2. On the command line (in the black window) we write:

netsh wlan delete profile name=”Profile name from the list of networks”

Resetting the TCP/IP stack

This method may help if sites open poorly:

1. On the command line we write:

netsh int ip reset C:\resetlog.log

1. Reboot the laptop.

Disable TCP/IP auto-configuration in Windows 10

Innovations in the top ten, designed to optimize the use of the network, in many cases lead to frequent Wi-Fi failures. We try to turn it off and reboot. To do this, enter the commands one by one on the command line:

netsh int tcp set heuristics disabled

netsh int tcp set global autotuninglevel=disabled

netsh int tcp set global rss=enabled

After each command you should see confirmation of successful execution “Ok”. Reboot, check if everything works as it should.

What to do if the Wi-Fi module burns out or is constantly glitching

Sometimes nothing helps, no matter how hard you try! In this case, the best solution is to buy a USB Wi-Fi module (“whistle”).

Changing the built-in network is more difficult and expensive. USB “whistles” work normally, at almost the same speeds. And for the notorious Broadcom at Lenovo, even the cheapest Realtek RTL8188CU module at $4 works 1.5-2 times faster and more stable!

Problems with the router

There are two options here:

There is a connection, but no access to the Internet

This is when the wifi icon looks like this:

This means that wifi is connected and working, but the network is only between the laptop and the router. Those. The router is not configured or does not have access to the Internet. Look at the front panel of the router, is the WAN light on/blinking? If not, then there is a problem with the cable from the provider, you need to call them. If the light is on, then you need to go to the admin panel of the router and configure Internet access for your provider. How to log into the admin panel is in .

Let me make a reservation right away that all Internet providers have their own ways of organizing access. Ideally, you need to find a contract that spells out everything. Or call technical support.

The point is this: in the admin panel you need to go to the WAN section and enter the settings there from the sheet. Using a TP-Link router as an example, it looks like this:

And since we are here, we will immediately solve problems when sites do not open, but Skype works and the Wi-Fi icon shows that everything, like, works. Check the box “Use These DNS Servers” and enter in the fields:

8.8.8.8

77.88.8.8

These are public DNS servers of Google and Yandex, respectively. Or:

1.1.1.1

1.0.0.1

These will be the new faster DNS from CloudFlare. We do this because the DNS (name servers) of providers very often fail, as a result, the Internet appears to be there, but browsers do not understand site names and do not see them.

Also, if sites work very slowly, loading is intermittent, then in the WAN sections, pay attention to the “MTU Size” parameter. If the connection type is “Dynamic IP” or “Static IP”, then the value should be 1500. For L2TP: 1460, PPPoE: 1420. If you have a network via a 3G modem, then set the MTU to 1476. This is a fine network setting, and if the connection if stable operation is not achieved, then you need to call your provider and ask what MTU you need to use.

This situation could also arise if you were previously connected by cable directly, and then installed a router. Many telecom providers record your MAC address when you first connect, so that no one but you can use your Internet. The computer and router have their own unique MAC addresses. And it turns out that your router turns out to be a stranger to your provider.

You need to assign the same mac to the router as the computer’s network card. To do this, in the admin panel we find the “Network -> MAC Clone” section and click the “Clone MAC Address” button, save, and reboot.

Wi-Fi doesn't work well and turns off

If everything worked, and then suddenly stopped, or everything took a very long time to load and was interrupted, then it is very likely that the radio channel that the router uses is clogged. You need to go to the admin panel in the “Wireless” settings section and see what the channel is:

It should be "Auto". If it doesn’t help, then you can try selecting any numbers from the drop-down list. A couple of attempts will be enough to understand that this is not the case.

If it does not connect to Wi-Fi at all or writes “Status Restricted”, then you need to select the mixed operating mode “11bgn mixed” there. It can be called differently, the key here is the letter “bgn”. This means three wifi network standards. “B” is the oldest and slowest, “G” is up to 54 Mbit, “N” is the most popular today. But you will have to log into the router from another device, because it’s not possible from a laptop. Or just reset it to default.

Also, poor and slow communication may be due to the power supply scheme in Windows. With certain settings, a gentle mode of operation of the adapter can be enabled. You need to change it here:

If all else fails

What else, sometimes it helps to set the same time zone in the router settings as is installed in Windows:

Enabling FIPS compatibility mode may also help. To enable go to " Network and Sharing Center -> Wireless -> Wireless Properties -> Security -> Advanced Settings»

And in the next window, enable the checkbox for compatibility mode with the “FIPS” standard.

It doesn't hurt to disable your antivirus, especially DrWeb, which can block the network.

Before you throw your laptop out the window, try using Windows' built-in troubleshooting wizard, which offers its services at every error. It’s strange, but they say that sometimes it helps :)

Watch the video on the article:

That's all, friends, good luck!

(31 votes, average: 4.3 out of 5)

When starting a laptop with Windows 10 / Windows 7 or a buggy Windows 8, one day you may find that the wireless network icon - wifi - has disappeared. What to do then? How to fix?

Wi-Fi (Wireless) is the most widely used wireless connection between a laptop and the Internet.

Wireless Wi-Fi connection is almost a monopoly in its industry and the versatility of this solution is beyond doubt.

It minimizes compatibility issues and this technology is rapidly developing.

Unfortunately, the more users use it, the more errors and malfunctions arise, one of them is that the icon is missing or has disappeared.

ATTENTION: the entry below is already a little outdated (written at least 5 years ago), so I recommend looking for a solution in a new one, written quite recently -

No wifi icon

To connect to a Wi-Fi wireless network, you must have an appropriate receiving device (for example, a network adapter) that is compatible with the sending device (for example, a router).

When you start your laptop, you should be able to view detected networks by clicking the wireless network icon. It happens that the icon is not displayed - it has disappeared. Why?

If you're using a mobile device, you'll first need to find out if it's in Airplane mode, which disables the ability to communicate.

If, after starting the device in standard mode, the wireless network icon is still not displayed, check whether the network card is running.

In laptops, it is launched using a special switch (on the case) and through a combination of function keys.

To do this, launch Device Manager (Control Panel → Hardware and Sound → Device Manager), select Network Adapters, open Properties, and launch the appropriate settings.

Other solutions to missing wifi icon

If the adapter is not visible in Device Manager or shows an error in operation, you need to use the troubleshooting tool provided by Windows 7 - windows10.

It finds and diagnoses problems and proposes appropriate solutions.

To launch it, open the “….” section. and click on the “troubleshoot” option.

If your problem is not resolved automatically and the adapter is visible in the system, then you need to manually install the latest drivers.

It is best to download them from the website of the card or laptop manufacturer - I do not recommend using the program.

If the network card does not appear in the system, it may be physically damaged. Then you can’t do without the service.

Let's hope this is not your case. Of course, the problem may be purely “personal to your laptop,” but it can be solved on an individual basis. Good luck.

Wi-Fi technology is very widely used in the life of a modern person, as it allows you to easily and quickly solve the problem of 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. There are many reasons why Wi-Fi may not work on a laptop computer. 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 the problem is related to this, you should try to connect to the network from any other device that is equipped with a 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, you can 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 wireless adapter on your laptop is enabled. Almost all modern models have light indicators for the operation of the WiFi module and there are special key combinations to enable it in hardware.

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, the corresponding antenna icon is located on the desired key. If it is not there, then to turn on Wi-Fi you should try pressing the standard combination for a particular model:
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 does not give positive results, you also need to turn it on in software, which is done directly from the operating system the laptop is running.

To programmatically enable 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 version of the operating system;

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 Network Connection” icon. 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 and select “Enable” from the context menu that opens. 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 actions, Wi-Fi, 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 whether the driver is installed, 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 should 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 indicating the normal operation of the device, this is far from a guarantee that the correct driver version is installed and Wi-Fi is turned on correctly. To check it, in the window with the properties of the wireless device, go to the “Driver” tab and pay attention to the items “Date of development” and “Vendor”.

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

The same should be done if there is no wireless adapter among the list of installed devices.

If the wireless communication module is present in the list of devices, but is marked with a yellow exclamation mark, this means that the device is disabled, as a result of which the network has 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 is affected by some external factors that may weaken it. Ceilings, walls, floors and similar obstacles significantly degrade the signal quality of the access point and laptop.

As you know, the signal quality on a personal computer is displayed in the form of several marks - the more of them, 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 properly.

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

Other causes of Wi-Fi problems

The causes of problems with the functioning of the wireless network adapter described above are the most common and you can fix them on your own.

It is worth noting that all of these are software solutions to the problem, which can be solved by installing, reinstalling or updating the device driver, as well as performing some operations with the OS.

But often the problem with the operation of the wireless connection module lies in hardware errors. What are these errors? These are problems that are directly related to the board itself, most often due to its physical damage.

To fix such problems, you will need to disassemble the laptop. It is worth noting that such actions can only be performed if you have certain skills in this area. If such skills are missing, it is better to entrust the work to professionals.

One of the most common physical damages is an unconnected antenna wire to the proximity module. This problem occurs with laptops that have been repaired or if their owner independently cleaned the cooling system from dust. In such cases, the antenna is sometimes simply forgotten, as a result of which the adapter will not be able to establish a connection even near the signal source. To fix this problem, you just need to connect its antenna to the Wi-Fi module.

Sometimes the reason that Wi-Fi stops working is the usual overheating of the network card. Most often this is the result of the laptop being placed on some kind of soft surface. The thing is that at the bottom of the device there are holes through which cold air enters, cooling all the computer boards. By blocking these holes, the system will overheat, which can lead to failure of certain components.

Another common cause of device overheating is dust, which can prevent cold air from entering the cooling system.

That is why, in order to avoid such problems, it is recommended to clean the laptop from dust at least once every year: in this case, it will be possible to avoid repairing the laptop as a result of overheating of its components.

In the most extreme cases, the wireless adapter may even burn out. In this case, only replacing it with a new one will help. You can determine this problem using the device manager, in which the module will simply no longer be displayed. When you try to install a driver for a wireless network, a message appears stating that the corresponding device is not installed on the system.

If all else fails

If none of the tips above helped, you can use a simple, but often effective solution: restart both your computer and your 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 existing solutions to problems related to the fact that Wi-Fi has stopped working on a laptop have been listed above. Almost all such methods and recommendations can be used by anyone who is faced with a 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.