Wifi adapter turns off periodically. Software malfunction. Update adapter drivers

Very often there are cases when Wi-Fi on a laptop turns off on its own. Now we will figure out why the Internet disappears via Wi-Fi and how to solve this problem. If you came to this page, then you most likely already have this problem. We connect our laptop to Wi-Fi, the Internet works, but sometimes it disappears. There is one important point here: Wi-Fi does not turn off completely, but simply goes into the status “No Internet access” or “Limited” (and a yellow exclamation mark appears). Well, the Internet doesn't work. Although, there are times when the computer is completely disconnected from the wireless network. This problem is not uncommon on Windows 7, Windows 8, and Windows 10. So it doesn't matter what operating system is installed on your laptop.

As a rule, the Wi-Fi connection disappears periodically, or after waking up from sleep mode. There are times when the Internet stops working for a few seconds and then appears again. In any case, this creates a lot of inconvenience. You have to wait, reboot the laptop, downloading files, watching movies, etc. are interrupted.

Important point! We will look at solutions when the Internet turns off on only one laptop. That is, other devices that are connected to your router continue to work normally. If the Internet disappears on all devices, both via Wi-Fi and cable, then this is already a problem with the Wi-Fi router, or some kind of problem with the Internet provider.

If you have a problem only on one computer, then now we will try to solve it.

Why does the Wi-Fi connection on my laptop disappear?

The main reasons for losing the connection to the router:

There is interference on the channel on which your Wi-Fi network operates. Or, a weak wireless signal.
Disabling the Wi-Fi adapter to save energy (Wi-Fi disappears when waking from sleep mode)
Unstable operation of the Wi-Fi adapter driver.
Problems with the router

I will show using Windows 7 as an example. If you have Windows 8.1 or Windows 10 and the Internet also disappears every 5 minutes (maybe more often or less often), then these tips will suit you. As for Windows 10, it is now full of problems with drivers. Therefore, if the connection in the “ten” is broken, I would first advise experimenting with the wireless adapter drivers.

Wi-Fi disconnects due to interference and weak signal

Our home wireless network operates on a specific channel. As a rule, there are many other neighboring networks within a radius that can cause interference. Interference may also come from other household appliances. And coupled with a not very stable wireless network signal, this can lead to a disconnection of the Internet on the laptop. A yellow exclamation mark "without internet access" may appear and work again after a while.

Also, disconnection can occur due to a poor signal when you move far from the router, and on the laptop, where the signal strength is displayed, one or two bars remain. In such cases, the connection may disappear altogether. If the Internet constantly cuts out in those rooms where the Wi-Fi network signal is weak, then we need to strengthen the signal of our network so that the connection is more stable. I wrote about this in the article: how to strengthen the signal of a Wi-Fi network? We increase the Wi-Fi range.

As for problems with interference, here you need to experiment with the channel on which your network operates. You can try using a special program to find the freest channel and set it in the router settings. Or, just set some static channel in the router settings. I described in detail how to do this in the instructions: how to find a free Wi-Fi channel and change the channel on the router? If you already have a static channel, then set it to Auto.

This is what changing the channel looks like on a Tp-Link router:

Please note under what conditions the Internet connection occurs. This could be, for example, moving around the house, or only in certain places (rooms). Then it will be easier to find the cause and eliminate it.

What to do if the Internet disappears after waking up from sleep mode

This happens because Windows turns off the Wi-Fi adapter during sleep mode to save power. And when you exit sleep mode, the adapter can no longer work normally, and you need to restart the laptop. Also, problems are often observed when the laptop is running on battery power. We need to disable the wireless adapter from turning off, and set maximum performance when running on battery power and mains power.

Let's set up the power supply first. Press the keyboard shortcut Win+R. Copy the command control powercfg.cpl in the "Open" line and click on the button Ok.

A window with power plans will appear. I advise you to choose Balanced. Next, click next to this plan on the link Setting up a power plan.

Next we open Change advanced power settings. Looking for a section Wireless adapter settings, open it and install Maximum performance when operating from mains and battery. Click Apply And Ok.

Prohibit disabling the Wi-F adapter to save energy

Disabling the adapter will not save us a lot of electricity, but problems with its operation may appear. Therefore, you need to prevent Windows from turning off the adapter.

Click Win+R, copy the command mmc devmgmt.msc and press Ok.

Device Manager will open. Find and open the tab Network adapters. Then, right-click on the Wi-Fi adapter (its name should contain the words "Wi-Fi", "Wireless") and select Properties.

Go to the tab Power management, and uncheck the box Allow this device to turn off to save power. Click Ok.

We reboot the laptop and check how the Internet will work via Wi-Fi.

Internet may disappear due to driver problems

If the Wi-Fi adapter driver is outdated, or the wrong driver is installed, then a variety of problems with the wireless connection may appear. Open Device Manager like I showed above (press Win+R and execute the command mmc devmgmt.msc). Open the tab Network adapters. Find your wireless adapter (the name will include "Wi-Fi", 802.11n, or "Wireless"). There may be a yellow exclamation mark next to the adapter. This means that the device is not working properly.

Even if there is no warning icon, try updating the driver for this adapter. Perhaps this will solve the problem with Wi-Fi disconnecting. Just don't update through Device Manager. (the system will say that the update is not needed), and download the driver from the official website of your laptop manufacturer. Required for your model and operating system. Download and install the driver. I wrote in more detail about driver installation in this article.

You can also try selecting one from already installed driver versions, removing the driver, or rolling back it. I described all these actions in more detail using Windows 10 as an example in a separate article: solving problems with the wireless Wi-Fi adapter driver in Windows 10.

What to do if the Internet periodically disappears on all devices?

If your Internet connection disappears simultaneously on all connected devices, then the problem is already in the router. I wrote about this at the beginning of the article. On computers, the connection status becomes "no internet access".

And on mobile devices (smartphones, tablets), the Internet simply stops working. And after such failures, you always need to reboot the router, only after that the Internet starts working again. Moreover, such interruptions usually happen at moments when the router is under heavy load: we are downloading something (especially from torrents), watch online videos, play online games, connect some other devices to Wi-Fi, etc. And basically, this problem occurs on inexpensive routers.

This is understandable, they simply cannot withstand the load and “fall”. Only a reboot saves. My friend has exactly the same problem with Tp-Link TL-WR741ND (which is from the Kyivstar provider). After connecting the smartphone and laptop, everything works well. As soon as you turn on watching online video, after a while the Internet disappears.

What can be done:

Connect the Internet without a router, directly to the computer, and check the operation. To eliminate interruptions on the provider’s side.
Update the router firmware, this often helps. We have instructions on our website for all popular router manufacturers.
Disable torrent clients on devices (if there are any). They create a load due to which the Internet disappears.
If you have Internet via a 3G/4G USB modem that is connected to a router, then such interruptions most likely occur on the provider’s side.
Well, buying a more powerful router.

It seems like I didn't miss anything. Write in the comments how you managed to get rid of this problem.

With the development of information technology, it has become difficult to imagine the life of a modern person without the Internet and, in particular, a wireless network, thanks to which he always stays in touch and has the ability to quickly resolve all sorts of issues. This is why a sudden connection loss makes the user nervous and stressed in fear of missing something important. This article will look at all the possible reasons why the Wi-Fi connection on your phone turns off and will provide ways to solve them.

Causes of problems

In most cases, problems with connecting to a wireless network can be caused by the following reasons:

errors in Wi-Fi network settings;
router malfunction;
third-party programs downloaded to the phone;
low quality software.

To solve the problem, it is necessary to correctly diagnose the source of its occurrence. In many cases, this can be done independently, without the help of specialists. You can troubleshoot problems using the recommendations below, which are given for any phone operating system. Sometimes the Internet may work slowly and poorly due to network congestion, as too many devices are connected.

Errors in router settings

The first step is to check for errors in the router settings. To do this, you need to log into the control panel by opening it through a browser. The address for entering the settings, as well as the necessary password and login, are usually indicated on the body of the router itself. By default, the local address of the router is “192.168.1.1”, the username and password are the same: “admin”.

After gaining access to the settings parameters, you need to check them:

the inclusion of a DHCP server, which is responsible for automatically obtaining an IP address;
channel width (shaping) is set automatically, can be from 5 to 40 MHz;
channel selection is also performed automatically;
the data transfer rate should be set to the maximum of the presented values;
The choice of region is rarely the source of the problem, so it is better not to change it;
Security Settings.

You can download the file with the software on the official website of the device manufacturer. To reflash the router, you need to go to the “System Tools” section and to the “Firmware Update” category. After that, you will need to specify the path to the firmware file and update it.

Router malfunction

If the router settings did not help determine why Wi-Fi stopped working, you need to check the device itself for problems.

The correct operation of the router is shown by light indicators:

The power indicator indicates that the router is connected to the electrical network. Should always be on. The backlight color may vary depending on the router model.
The system indicator displays information about the correct operation of the device. Should blink constantly.
The WAN indicator shows Internet access via cable.
The WLAN indicator indicates that the Wi-Fi network is active.
LAN connection indicators show local connections to the router that do not affect Wi-Fi operation.

Router operation

If the WLAN indicator is not lit or blinking, you should check whether the wireless network distribution is disabled: many routers have a button to limit the methods used to connect to the Internet.

The problem may also be directly in the connection of the router to the Internet - the WAN indicator does not light up. These may be problems on the provider's side, which can be easily checked by connecting the network cable to the computer. If the indicator does not light up even when the cable is connected, then most likely the WAN port of the router or the cable itself is broken, and you should contact a specialist.

In situations where the Internet connection is poor, you can reboot the router using the power button or disconnect from the network. A technical breakdown of the device is also possible, in which case you need to contact a repair service or buy a new one.

Availability of third party programs

Another reason why the wireless network on the phone disappears is that the device is infected with viruses. To eliminate it, you need to install an antivirus and, if present, eliminate malware. It is worth understanding that anti-virus software is also external and can interfere with the normal operation of Wi-Fi.

It often happens that there are programs installed on your phone that block the Wi-Fi connection. One of these is a special program that allows you to save battery power. The principle of its operation is to automatically turn off unused modules, but sometimes there are failures and the Wi-Fi adapter turns off even when using the Internet. This problem may be indicated by the fact that Wi-Fi on the phone constantly crashes. To solve it, you need to disable or uninstall the mentioned program.

Low quality software

Some users are faced with the fact that their phone stops seeing possible Wi-Fi networks for connecting. The problem may be due to unlicensed software installed or a change in factory settings. In such a situation, you need to reset the current settings or reinstall the software.

On phones whose manufacturers are more responsible for the quality of software and, as a result, for the brand image, this rarely happens. That is why you should pay special attention to choosing the brand of smartphone.

Problems with your phone and the networks connected to it can often be resolved on your own. However, you should not try to figure out internal problems without experience, since physical intervention can lead to damage to the device. If the information presented in this article does not help, you should contact specialists at diagnostic centers.

Today it is no longer possible to imagine any apartment or office without its own Wi-Fi network. Having a router is no longer a luxury, but an ordinary thing. But every user sooner or later faces a problem when Wi-Fi turns off on the phone. Why is this happening? Is this a technical problem or just carelessness in use? The article will tell you about the main types of errors and how to eliminate them.

Problems with connection

In 99% of cases, problems with Wi-Fi connection are caused by the following reasons:

Incorrect operation of the router.
Wi-Fi settings errors.
The presence of third-party programs installed on the device.
Incorrect phone settings.

Correct diagnosis will help solve the problem. In most cases, you can do this yourself, without the help of specialists. Slow Internet performance, for example, may indicate that the network is overloaded because there are too many devices connected.

Settings errors

The first thing you should pay attention to is the settings of the Wi-Fi access point itself. You can check correct operation through the router menu, which can be accessed through a browser. To do this, you need to know the username and password, which are either written on the router itself, or, if they have already been changed, you need to find out yourself or reset the settings. Once access to the menu is obtained, you need to find out the wireless mode parameters, such as:

Channel width (settable from 5 to 40 MHz).
Channel selection (automatically configured, but you can select it yourself).
Baud rate (set to maximum value).
Region (may be the cause of the problem, but very rarely, so it is better not to change this item).

Everything is set correctly, but why does Wi-Fi on the phone turn off? We need to move on to the next point.

Incorrect operation of the router

If using the router settings menu it was not possible to determine why the Wi-Fi on the phone turns off, you need to check the operation of the router itself.

Indicators will tell the user whether the operation is correct. There are usually three or four of them, depending on the model, and they should all be lit or flashing:

Nutrition. Color may vary on different models (green, blue, but not red). But it should always be on and not blinking.
The system indicator must be blinking.
The WAN indicator is an indicator of the presence of an Internet network.
WLAN indicator - shows whether the wireless network is running on the router itself.
After them there are LAN ports, to which a cable for wired Internet is connected. They do not affect the operation of Wi-Fi.

The router also has a power button that can be used to restart the device. This trick helps many people.

Availability of third-party programs installed on the device

Viruses are one of the main problems of the Internet. Because of them, Wi-Fi on the phone periodically turns off. Why does this happen and how to avoid it? If there is a suspicion that the device has been subject to a virus attack, it is recommended to install one of the many anti-virus programs and run a scan. The program itself will find viruses known to it and eliminate them.

But such security programs often themselves become a problem for Internet access. Therefore, there is no need to keep the antivirus turned on all the time.

Incorrectly set phone parameters

If unlicensed or broken software is installed on the device, then you should not be surprised that Wi-Fi turns off. For some reason, this problem happens least often on Samsung phones. Perhaps because the manufacturer fully provides the devices with high-quality software. But even in this case, the user can accidentally or deliberately change the factory settings. This problem can only be solved by a full reset to the original settings. With “native” firmware, problems with Wi-Fi arise extremely rarely, since it is not subject to third-party influence. But in this case, the user will lose all his data, so important information should be saved before resetting.

Problems with Wi-Fi connections can often be resolved on your own. But physical intervention and repairs can permanently damage the device. If using available methods it is not possible to determine why the Wi-Fi on your phone turns off, you should contact technical support centers.

If you have a problem only on one computer, then now we will try to solve it.

A failure can also occur as a result of power outages or due to a large number of subscribers. All these reasons have one effect - the router freezes. To fix this, simply reboot it. Unplug the WiFi router's power supply from the outlet for 7-10 minutes, then plug it back in. Unfortunately, it will not be possible to completely eliminate this phenomenon, since budget devices are simply not able to withstand high loads without negative consequences and at some point they will still fail.

What to do if WiFi does not work on your laptop: Video

Wireless Internet is very convenient and modern, but it is not always problem-free. Some glitches that cause a lot of trouble for users appear on their own over and over again. Today we’ll talk about why the Wi-Fi network disappears. As a rule, such incidents are relevant for laptops, which, it would seem, are simply designed to work specifically with wireless networks, supporting the idea of creating an ideal mobile solution.

Since there may be several reasons for the problem, below we will look at each separately. In general, first you will need to do some diagnostics and check if there are any problems with the router's power supply and the device itself. In the case of the first, everything is determined quite simply; to check the second, you need to try connecting other devices to the network - tablets, phones.

If everything works fine, perhaps the problem is only with the computer, and you need to check the operation and settings of its adapter one by one.

Energy saving

The next thing we should do if the Wi-Fi network has disappeared is to carry out diagnostics using the system. Click on the wireless network signal icon and find the “Problem Diagnosis” item, then follow the instructions. Perhaps this option will help you.

Open “Start” and find the “Control Panel” we need. Now we need the settings that are hidden under the “Power Options” icon.

There will be several options here and, if you do not want to set high performance, then you need to select at least “Balanced mode”.

If this option is also unacceptable, you can only configure separate consumption for the adapter. Click “Configure power supply scheme” next to the required option.

Now “Change advanced settings”.

Here we scroll down and find the item “Adapter parameters” - you need to expand the parameter tree, then once again expand the sub-item “Energy Saving” and there in the parameters “from battery” and “from network” set “Maximum performance”.

You have done everything that could be done here - now click “OK”, “Save changes” and close the window.

The second option also, in a sense, depends on the power settings - it happens that when the user puts the computer into sleep mode, after turning on the adapter still remains in this mode.

Click “Start” again and click on “My Computer” and select “Properties”.

There will be a lot of equipment inside, but we are interested in network adapters. Having opened the tree with them, we look for the one with the Wi-Fi annotation and double-click with the left mouse button.

Here we look for “Power management” and uncheck the “Allow the device to turn off to save energy” checkbox. Next, click “OK” and test how everything works. To be more sure, the best option would be to reboot your device after all these operations.

Sometimes the problem may be due to oxidation of the adapter contacts, failure to connect it after cleaning or repair, or to the device drivers. In the first two cases, only mechanical intervention will help. To update drivers, you need to find the name of your model and go to the manufacturer's official website to download the necessary programs.

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This is all that could be done on the computer side if the Wi-Fi network disappeared, and now we will look at solving the problem on the distribution point side.

If the reason is in the router

If after all the checks you come to the conclusion that the problem is with the distribution device, then there is not much you can do: when the router is turned on and working normally, even without special settings and a plugged-in provider cable, the network will be detected and should not disappear.

As mentioned above, check the power supply to the device - perhaps a contact is loose somewhere or the power supply is becoming unusable.

The problem may lie in a crashed firmware, but identifying this is quite difficult, since if there is a failure, you can get into the settings and visually everything will be fine, but the Wi-Fi network still disappears over and over again.

In any case, if the router is already not working correctly, flashing it is unlikely to harm it. Just go to the manufacturer's official website, open the instructions and download the firmware. If after this there is no improvement, then most likely you will have to go for a new router.

Why Wi-Fi keeps disconnecting: Video

The network is a very tricky “subject”: if it exists, then it is immediately gone! Today we will look at another common problem of spontaneous disconnection of the Wi-Fi signal on laptops. So!

You have a network: computer - Internet - laptop, but the signal on the laptop constantly disappears. Sound familiar?

What could be the problem?

There are several reasons why this problem occurs. Here they are: 1) violations when connecting to the DNS server; 2) old drivers on network adapters are sources of failure; 3) problems with the module (rare, but it happens); 4) the router itself has broken down (rarely, but it also happens).

All these reasons are not very common, but they do occur. But there is another reason that rarely anyone pays attention to, but, nevertheless, it is the most common.

What do you do to ensure that your laptop retains its battery charge for as long as possible? Well, well, think. That's right: you put it into energy-saving mode. By the way, very often this mode is configured in laptops by default. Yes, this is very true, because the battery retains its charge longer. But this is precisely where the reason for the constant Wi-Fi interruption lies, friends!

Way to solve the problem

Here is a simple, understandable and accessible algorithm for solving the problem.

Regardless of what operating system you have, the gist of it comes down to this.

"Start" - "Control Panel" - "System and Security" - "Power Options". Now you see: you have a checkmark in the “Energy Saving” item. Right there you have an active system link “Setting up the power supply scheme” - click on this link. On the next page you will see another link “Change advanced power settings” click. You will get a Power Options window where you will see a menu. In this menu, find the item “Wireless network adapter settings” and open it (click on it). The “On Battery” sub-item will open and right there (opposite) you will see options for setting energy saving. So: the option “On battery: maximum energy saving” will be enabled there. It is because of this that your Wi-Fi disappears. The solution is simple: select the option “On battery: maximum performance”. Click "Apply" and "Ok". All.

There is another option to fix the Wi-Fi problem. Open the System and Security folder. In the "System" item, select the line "Device Manager" - "Network adapters". At this point, find the adapter that is responsible for Wi-Fi operation (for example, Qualcomm Atheros AR9485WB-EG Wireless Network Adapter, in general, the word Wireless should be there). Double-click on this adapter with the left mouse button. A window with the properties of your adapter will open. Open the “Power Management” tab and uncheck the “Allow the computer to turn off this device to save energy” option. Click on "Ok". All.

Happy dancing with the tambourine, friends, and see you again!

Setting up a Wi-Fi router is not so difficult, however, after this, despite the fact that in general everything works, a wide variety of problems are possible, and the most common of them include loss of Wi-Fi signal, as well as low Internet speed (which especially noticeable when downloading files) via Wi-Fi. Let's see how to fix this.

I will warn you in advance that this instruction and solution do not apply to those situations when, for example, when downloading from a torrent, the Wi-Fi router simply freezes and does not react to anything until it is rebooted. See also - all articles (solving problems, setting up different models for popular providers, more than 50 instructions)

One of the most common reasons why a Wi-Fi connection drops

First, what exactly does it look like and specific symptoms by which you can determine that the Wi-Fi connection disappears for this very reason:

A phone, tablet or laptop sometimes connects to Wi-Fi and sometimes doesn't, with almost no logic.
The speed over Wi-Fi, even when downloading from local resources, is too low.
The Wi-Fi connection disappears in one place, not far from the wireless router, there are no serious obstacles.

Perhaps I described the most common symptoms. So, the most common reason for their appearance is that your wireless network is using the same channel that is used by other Wi-Fi access points in the neighborhood. As a result of this, due to interference and “clogging” of the channel, such things appear. The solution is quite obvious: change the channel, because in most cases, users leave the Auto value, which is set in the default router settings.

Of course, you can try these steps at random, trying different channels until you find the most stable one. But you can approach the matter more intelligently - determine in advance the most free channels.

How to find an open Wi-Fi channel

If you have an Android phone or tablet, I recommend using different instructions:

First of all, download the free inSSIDer program to your computer from the official website http://www.metageek.net/products/inssider/. ( UPD: The program has become paid. But they have a free version for Android). This utility will allow you to easily scan all wireless networks in your environment and graphically display information about the distribution of these networks by channels. (See picture below).

Signals from two wireless networks overlap

Let's figure out what is shown on this graph. My access point, the site uses channels 13 and 9 (not all routers can use two channels at once for data transmission). Note that you can see that another wireless network is using the same channels. Accordingly, we can assume that problems with Wi-Fi communication are caused by this factor. But channels 4, 5 and 6, as you can see, are free.

Let's try changing the channel. The general idea is to choose the channel that is as far away from any other sufficiently strong wireless signals as possible. To do this, go to the router settings and go to the wireless Wi-Fi network settings () and specify the required channel. After that, apply the changes.

As you can see, the picture has changed for the better. Now, with a high degree of probability, the loss of Wi-Fi speed will not be so significant, and incomprehensible connection breaks will not be so frequent.

It is worth noting that each wireless network channel is separated by 5 MHz from the other, while the channel width can be 20 or 40 MHz. Thus, when choosing, for example, channel 5, the neighboring ones - 2, 3, 6 and 7 - will also be affected.

Just in case: this is not the only reason why the speed through the router may be low or the Wi-Fi connection may be interrupted, although it is one of the most common. This can also be caused by unstable firmware, problems with the router itself or the receiver device, as well as problems with the power supply (voltage jumps, etc.). You can read more about solving various problems when setting up a Wi-Fi router and the operation of wireless networks.

Setting up a Wi-Fi router is not so difficult, however, after this, despite the fact that in general everything works, a wide variety of problems are possible, and the most common of them include the loss of the Wi-Fi signal, as well as the Internet (which is especially noticeable when downloading files) via Wi-Fi. Let's see how to fix this.

One of the most common reasons why a Wi-Fi connection drops

First, what exactly does it look like and specific symptoms by which you can determine that the Wi-Fi connection disappears for this very reason:

A phone, tablet or laptop sometimes connects to Wi-Fi and sometimes doesn't, with almost no logic.
The speed over Wi-Fi, even when downloading from local resources, is too low.
The connection with Wi-Fi disappears in one place, and not far from, there are no serious obstacles.

How to find an open Wi-Fi channel

If you have an Android phone or tablet, I recommend using different instructions:

Signals from two wireless networks overlap

In this article we will talk about what to do if the WiFi network on your laptop turns off spontaneously. It is worth noting that the operating system is completely unimportant here, since such problems occur on XP, Windows 7 and 8. It is very important to analyze all the reasons, since not every user is able to figure it out on their own.

Also, such problems occur on a variety of models of wireless Wi-Fi adapters. Since the point here is not at all about the manufacturer or company, but about the principle of operation and system settings of the operating system. So, let's get down to business.

The wireless connection on a laptop may turn off on its own for the following reasons:

Shutdown to save power.
Weak Wi-Fi signal.
Driver malfunctions.

These are all the reasons why the WiFi network on a laptop turns off. All of them can be easily fixed by making some settings or reinstalling the driver for wireless equipment. Let's look at all the points in more detail.

Weak signal and sources of interference

Very often, the reason why the WiFi network on a laptop constantly turns off is a weak signal and various sources of interference. The fact is that, like any other radio signal, WiFi can also fluctuate. That is, the signal level is not stable.

It changes under the influence of certain factors:

Electrical voltage.
Various electrical appliances that create strong interference with the WiFi signal.
Metal objects located between the signal source and the laptop.

If your computer is located far enough from the router, the signal level may disappear from time to time. Because of this, a disconnection from the network occurs. The fact is that the signal itself fluctuates a little. If the computer is located close to the router. It's unnoticeable. However, when the signal level reaches 8-10%, such fluctuations can cause a break in the Wi-Fi connection.

Also in this case, interference may be caused by various metal objects located between the laptop and the router. It’s even worse if there is any device nearby that creates interference. For example, a mobile phone or a microwave oven. To fix this problem, simply move your computer closer to the WiFi router.

Why Wi-Fi turns off on a Windows 8 laptop: Video

Disabling the WiFi adapter to save energy

One of the most important factors in a laptop is its autonomy. Therefore, the developers created a program to save energy. According to it, if you do not use a module for a certain time, it automatically turns off. Also with a Wi-Fi connection adapter. It may turn off spontaneously if you do not use it.

But there are also cases where the program does not work very stably and the connection regularly breaks down at certain intervals, regardless of whether you use the Internet or not. In this case, you just need to disable this function on your laptop.

To do this, click on the battery icon in the tray (lower right corner of the desktop). From the menu that appears, select "Advanced power options."

A window will open where you can select a power plan. Here you need to go to “Power Plan Settings”. We are interested in the parameters of the type you are using (it is better to do further steps for all types).

So, now click “Change advanced power settings”. In the window that opens, simply find the “Wireless network adapter settings” item. Open a thread. You will see "Power Saving Mode". Open it.

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Now you see all the modes available to you:

From the network.
From battery.

In both cases, select “Maximum performance”. This means that the function of automatically turning off the WiFi adapter to save energy is inactive. This will keep your wireless module from disconnecting.

You have done the above steps, but WiFi still turns off. This suggests that your operating system is also configured to save power. To disable this feature, you should open the Network and Sharing Center.

This is done by right-clicking on the WiFi network icon in the tray. Next, select the appropriate item. In the window that opens, we are interested in the “Changing adapter parameters” section. Here we simply find the shortcut to the wireless network (or wireless network connection) and right-click on it. Select "Properties".

After this, a menu will open. We are interested in the “Network” tab. In it, click the “Configure” button. Next, select the “Power Management” tab. Here you just need to uncheck the “Allow the computer to turn off this device to save energy” checkbox. Click “Ok” and close all windows.

Why Wi-Fi keeps disconnecting: Video

Checking the functionality of Wi-Fi hardware drivers

Why does the WiFi network turn off on a laptop? The above steps did not help, what should I do? This indicates that the hardware drivers are not working correctly. To check this, press the Windows + R key combination, in the window that appears, write the following command - mmc devmgmt.msc and press “Enter”. This will open the Device Manager. Here we are interested in “Wireless adapters”. Open a thread and check to see if any module is highlighted with an exclamation point. In addition, the name of the wireless equipment should include its name and full model, for example, Broadcom 802.11n Wireless Network Adapter. If you just see “Wireless Equipment” or “Wireless Network Adapter”, then you should update the driver.

It is recommended to download the latest driver for Wi-Fi equipment from the official website of the laptop manufacturer. The fact is that software becomes outdated over time. At the same time, developers constantly release updated versions of drivers. In them they correct errors, making the equipment more stable. You just need to go to the official website of your laptop, enter support and enter the full device model in the search, for example “AsusK50 AB”. In the results, look for the software you need and save it to your hard drive.

How to reinstall the WiFi driver on a Windows laptop: Video

Router freezing

It is worth noting that in some cases, loss of connection (WiFi network turns off) occurs due to unstable operation of the signal source. The fact is that modern routers, which are most widespread, are budget ones. And such models quite often freeze due to heavy load. This happens when maximum bandwidth is reached, for example, when downloading large files at high speed over WiFi.

What to do if WiFi does not work on your laptop: Video

If everything works fine, perhaps the problem is only with the computer, and you need to check the operation and settings of its adapter one by one.

Energy saving

The next thing we should do if the Wi-Fi network has disappeared is to carry out diagnostics using the system. Click on the wireless network signal icon and find the “Problem Diagnosis” item, then follow the instructions. Perhaps this option will help you.

Open “Start” and find the “Control Panel” we need. Now we need the settings that are hidden under the “Power Options” icon.

There will be several options here and, if you do not want to set high performance, then you need to select at least “Balanced mode”.

If this option is also unacceptable, you can only configure separate consumption for the adapter. Click “Configure power supply scheme” next to the required option.

Now “Change advanced settings”.

You have done everything that could be done here - now click “OK”, “Save changes” and close the window.

The second option also, in a sense, depends on the power settings - it happens that when the user puts the computer into sleep mode, after turning on the adapter still remains in this mode.

Click “Start” again and click on “My Computer” and select “Properties”.

There will be a lot of equipment inside it, but we are interested in network adapters. Having opened the tree with them, we look for the one with the Wi-Fi annotation and double-click with the left mouse button.

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This is all that could be done on the computer side if the Wi-Fi network disappeared, and now we will look at solving the problem on the distribution point side.

If the reason is in the router

As mentioned above, check the power supply to the device - perhaps a contact is loose somewhere or the power supply is becoming unusable.