Hello friends. If you are having problems with the operation of a Wi-Fi router, or setting up Wi-Fi and you have already looked at the article, which by the way is the most popular on this site, then you probably noticed that the article has collected a lot of comments, or rather questions about various problems about setting up And Wi-Fi work networks.

The questions there are of course very different, we have already dealt with some of them, and I have written separate articles about their solution, for example. And I still can’t give a concrete answer to some questions. But after analyzing the comments a little, I noticed that there are a lot of questions of this type: the laptop and other devices have stopped connecting to the Internet via Wi-Fi, or the Internet via Wi-Fi often breaks out, and you have to reboot the router.

In fact, there can be a lot of reasons that lead to such problems and almost always, and they are different for everyone. For example, I'm on my router TP-Link TL-WR841N I have never noticed a Wi-Fi network break, and judging by the comments, this happens to others very often.

An even more interesting case, which I also came across in the comments, is when the Internet works, and at one point the Wi-Fi network stops working. Devices either do not connect at all, or connect but operate with the network status without Internet access, or limited access. Phones and tablets connect to Wi-Fi, but do not open websites.

What to do if the Internet via Wi-Fi stops working?

Problems with Wi-Fi Internet:

Internet connection via Wi-Fi stopped working
Wi-Fi network drops frequently
Internet via Wi-Fi began to work very slowly
Devices connect to the router once.
The device connects to Wi-Fi, but the sites do not work (the sites do not open).

If you have one of the above problems, or a similar problem, then I have one piece of advice that may help solve it. Friends, I don’t guarantee anything, but it’s worth a try, in many cases it helps.

Each Wi-Fi network operates on a dedicated channel. When setting up a router, the default is "Auto", and everyone advises, including me, to install the Channel (Channel:) on "Auto". This means that the router itself will look for a more suitable channel and use it. The whole point is that there may be interference from a neighboring Wi-Fi router and then the most different problems with Wi-Fi. Refusal to connect to the network, network without Internet access, and frequent interruptions.

You need to try changing the value of the Channel: parameter to any number from the list, or if you have a specific value set, then try changing it to “Auto”.

How to change the Channel on a Wi-Fi router?

Everything is simple here, so you shouldn't have any problems. You need to go into the router settings, well, I hope you already know how to do this, I’ve written about this many times already. Apparently we will have to do it again, very briefly :). Connect the router to the computer via network cable(at the time of setup) and enter in address bar browser address of the router is 192.168.1.1. Enter your username and password and click “Submit”, log in, or whatever you have, it doesn’t matter.

I will show an example on, but even if you have a different model, or even a company, I think that the process of changing the Wi-Fi channel is not much different.

Go to the “Wireless” tab and find the “Channel” item on the left.

Next to it there is a drop-down menu in which you can select a channel. I advise you to try several channels, at your discretion, after each change of channel, do not forget save changes by clicking the “Save” button and reboot the router. If you already have a certain number set next to “Channel”, then try setting the value to “Auto”.

There is a program that you can use to see which channel is already occupied by neighboring Wi-Fi and which is not, it’s called inSSlDer. But I won’t describe it here, because it is more suitable for Wi-Fi settings networks for more stable operation. And this is a topic for another article. Although if your devices find a lot of neighboring networks, you can try this program.

Try the method I described above, it definitely won’t get any worse. And judging by the reviews on this site, changing the Wi-Fi channel on the router really helps solve the problem with unstable Wi-Fi, or in general, solve the problem when no device wants to connect to the Internet via Wi-Fi, or connects, but the network does not have Internet access. Good luck.

Routers and access points with Wi-Fi are an integral attribute of the home and mobile internet for 10 years now. One day, the speed of the Wi-Fi network can be greatly reduced, and sometimes the wireless connection disappears completely and for a long time.

The main reasons for disruption of the Wi-Fi network

Problems with wireless access to the Internet may be due to various reasons: router failures, incorrect settings computer or smartphone, interference from nearby equipment, etc. Viruses and even the actions of hackers can disrupt operation. In all cases, you need to identify the cause of the malfunction and try to eliminate it - first yourself, and if that doesn’t work, then turn to professional computer specialists.

The Wi-Fi network is visible to devices, but they do not connect to it

There may be several reasons why there may be no connection to a Wi-Fi network.

Wi-Fi network is not visible to devices

There are several reasons why the Wi-Fi network is not visible from a gadget or PC.

Wi-Fi on PC or tablet does not work after reinstalling Windows

There are several reasons - from hardware to software.

Video: WI-Fi does not work after Windows 10 update

Laptop or tablet is connected to Wi-Fi, but there is no Internet

The reasons are due to the fact that the router does not have Internet access.

There is Internet via Wi-Fi, but it turns off on its own

There may also be several reasons.

Inadequate Internet connection quality. If the provider has an unreliable communication channel or, in the battle for first place in the list of the most popular operators, has gone too far with the number of clients, the speed of individual users will be very low, the connection will often reconnect due to equipment overload, and incoming traffic will freeze. Previously, cellular providers suffered from this - at the initial stages of development of the 2G/3G/4G coverage area, demand, in the context of a landslide reduction in the price of 1 MB of traffic, was far ahead of the construction and launch of new network facilities.
Freezing RAM router (data buffer overload). Restarting it will help.
The device has overheated - any modern technology has protection against overheating of microcircuits. Both the CPU/RAM of the router or access point, as well as any of its microcontrollers that process data incoming/outgoing via LAN or Wi-Fi, can overheat. It is advisable to turn off the router for at least a few minutes.

In case bad signal 3G/4G and high speed Internet connection, the 4G modem used with the router may also overheat at the same time. Users of Android smartphones and tablets (Yota subscribers), who distributed up to 40 GB every day via Wi-Fi (in the 2000s, these were Nokia and Motorola mobile phones connected via cable or Bluetooth), talk about cases when the device got hot like a kettle and turned off every hour or two of downloading/distributing torrents on the PC. The same thing happens with routers.

Wi-Fi does not work due to firmware glitches and viruses

No matter how simple, friendly and secure the firmware (firmware) of the router is, the router itself is not protected from malfunctions and viruses. Virus technologies disrupted the operation of Apple, Android and Symbian gadgets. The virus code penetrated card machines, ATMs and access control systems at protected sites with the Internet, and disabled the firmware in USB modems. Routers are also not insured - neither purely wireless from Beeline or Yota, nor home ZyXEL and TP-Link, nor Cisco access points, nor purely cable equipment used in facilities where any wireless element is prohibited by security rules.

Software failures can occur either due to inept flashing (by ignorance or accident, the power is reset during a firmware update in the router’s flash memory), or wear and tear of the flash memory chip itself (it’s impossible to even enter the router settings - underloading of the web pages). interface in the browser).

Viral activity is expressed in reprogramming the router settings: changing the IP DNS to the values of the malicious server, substituting primitive passwords or turning off Wi-Fi security settings, switching wired protocols and cellular network operating modes, etc. To fix this, do the following.

Sometimes the virus changes the firmware file just before it is downloaded to the router. The solution is to remove viruses from your PC, using all means, including formatting the drive (of course, transferring valuable data to other media before doing so) and download official version firmware again from the manufacturer's website.

Slow Internet speed via Wi-Fi

The reasons are related to both the quality of network access and Wi-Fi communication parameters.

Low speed cable or cellular provider tariff. If the Rostelecom company and its dealers have unlimited speed, then in cellular networks, for example, in MegaFon or MTS, after a certain number of gigabytes of traffic per month, the speed drops to 64 (or 128) kbit/s. Change tariff and provider.
MTS limits the connection speed on the “Hype” tariff after the subscriber uses up 7 GB mobile traffic per month
Unstable operation of LAN-Ethernet 10/100 networks. You can feel how the speed has dropped sharply due to a damaged provider cable coming from the optical terminal at the entrance to your apartment by watching movies in (Ultra)HD format online: movie playback, which was still stable yesterday, “slows down” every second , loading data. A few years ago, the provider himself was to blame, but now the speed of the same Rostelecom subscribers has increased so much that 95% of the time it will be normal, excluding evening hours, when the load is maximum. With constant “brakes” of online video, you can with 100% certainty suspect a malfunction of either the cable or the router itself.
If the cable or router malfunctions, the connection speed drops sharply
Router data buffer overload. Restart it.
You are too far away from the device. In fact, the Wi-Fi speed, depending on the distance between the router and the gadget/PC, as well as the level of the Wi-Fi signal on the gadget itself, fluctuates hundreds of times - from 1 to 300 Mbit/s, that’s how it works Wi-Fi technology. If in one room the speed is 150–300 Mbit/s, then in the next room it can already be from 11 to 54 Mbit/s, and in the entrance or on the street it can drop to 1 Mbit/s. For cable connection (length LAN cable up to 250 m) interruptions in Wi-Fi will not affect it in any way.
Choose auto speed switching using Wi-Fi technology

The last point requires clarification. The fact is that the Wi-Fi speed is switched by the router and the gadget automatically. Even if you forcefully turn on the maximum (802.11n or 150 Mbit/s), then if you go into the next room, you may lose your connection to the Internet - incoming and outgoing traffic will freeze, websites will stop opening and messengers will stop working, even simple ones like ICQ , since the lower level speed (802.11g, or 54 Mbit/s) will not be enabled.

Different types of Wi-Fi networks support different speed data transmission

Check the auto speed selection in the router settings.

Advice for experimenters: without highly directional antennas and amplifiers, do not be located far from the router.

Video: how the provider’s speed is “cut” by the router via Wi-Fi

Why on a laptop?Wi-Fi network disappears?

I bought a D-Link DIR-651 router, configured everything according to the instructions and ran into a problem that when the computer and power are turned off, the router resets the DNS server settings. Preface... Solution...

Purchased a laptop, phone or tablet. A portable device is specifically selected to access the Internet via Wi-Fi in any accessible location. However, an unexpected difficulty arises: for some reason the connection suddenly disappears. What is the reason? Let's figure it out.

Abrupt and sudden shutdown wireless network can happen due to several reasons. They are presented below:

Wi-Fi coverage may disappear due to the fact that one of the functions of any modern device, be it a laptop, tablet or phone, is to save battery power.
An important reason may be the presence of a weak Wi-Fi signal.
Another reason is unexpected driver failures, including the driver responsible for the high-quality operation of the wireless network.

However, whatever the reasons why Wi-Fi turns off, they are all quite easy to fix. It is only important to be able to make the necessary settings or reinstall the driver. In this case, it is best to download the driver from the manufacturer’s official website, otherwise serious problems with Wi-Fi operation may occur. Let's talk about solutions to problems in more detail.

What to do if there is a weak signal or sources of strong interference?

This factor is a fairly common reason for Wi-Fi connection disconnection. Needless to say, this coverage is based on radio signals that can be shaken. It’s worth saying directly about the signal level that it is not always stable. It is influenced by several factors, the most significant of which is the voltage in electrical network. The most diverse electrical appliances are involved in creating interference, which can sometimes be so strong that it interferes with the propagation of the Wi-Fi signal.

The presence of metal objects between the portable device and a router. If the laptop is located at a fairly large distance from the signal propagation point, it may periodically disappear. Therefore Wi-Fi turns off. As already noted, the signal is not stable.

When a laptop, phone or tablet is placed close to the router, the vibrations are unnoticeable, but when moving away they begin to become more pronounced, and eventually the Wi-Fi connection is interrupted. Communication has a particularly negative impact mobile phones or microwave ovens. You can fix the problem by moving the laptop closer to the wireless router.

Problems caused by battery saving

As you know, one of the fundamental functions of any laptop, tablet and phone is autonomous operation, which is achieved due to high-quality battery saving. In this regard, the developers created special program, which allows you to save energy and which automatically turns off for a long time unused modules.

The same applies to the Wi-Fi adapter. It is quite possible that it will turn off spontaneously if it is not in use. However, it happens that the program gives certain glitches and, as a result of an unstable connection with Wi-Fi, the adapter turns off after a certain period of time, regardless of whether it is needed at the moment Internet connection or not needed.

You can solve the problem described by disabling the mentioned option. To do this, you need to pay attention to the battery icon in the lower right corner of the screen. Having selected it, you should go to “Additional battery recharge parameters”, and then set the optimal recharge plan. Here it is quite possible to experiment until the optimal plan is found.

Finally, you need to select the “Edit” icon. The Energy Saving Modes window appears. Here you need to set maximum performance both when operating on battery power and when operating from the network. Thus, automatic turning off Wi-Fi adapter will become inactive. As a result, Wi-Fi will not suddenly disappear.

However, what if all the work has been done correctly, but the Wi-Fi connection still keeps disconnecting? This means that the operating system itself has power saving settings. You can disable this feature using the Wireless Network and Sharing Center. All you need to do is right-click on the “Wi-Fi” icon. Then you should select the required pop-up sub-item - “Change parameters”. Here you need to find the wireless connection shortcut and click on it right click. In “Properties” you should select “Network”. Then you should go to “Settings” and select “Power Management”. Here you should uncheck the box “Allowing a device to turn off to save power”.

Recently I began to notice that the more people buy different equipment with WiFi - routers, modems, access points, TVs, tablets, etc. - the more problems arise with the wireless network: the signal disappears or it is very low, the data transfer speed jumps or it is very low, devices periodically fall off and can no longer connect. There are quite a few reasons why Wi-Fi turns off, and these can be: software settings, and hardware failure. In general, a wireless network itself is a very capricious thing, the stability of which depends on many factors and conditions. Today I will talk about the most common problems and failures that can cause poor reception or the WiFi signal disappearing altogether.

The WiFi signal suddenly disappeared

The router shut down. Try rebooting it by turning off the power for a couple of minutes and turning it on again.

If you have a laptop or tablet, check the battery charge. On many mobile devices, the Wi-Fi module can be forcibly disabled to save energy. Moreover, on laptops with Windows 8 and Windows 10, this option is often enabled in the adapter properties.

It is also worth checking the settings of the power supply circuit used.

Approach the router at a distance of approximately 2 meters. No signal? Then you need to test a known working device with wireless network interface- tablet, smartphone, phone, etc. If it works without problems, but your laptop cannot connect, then most likely there is a problem with the adapter driver. Try reinstalling or updating it.

It didn’t help and WiFi still turns off on the laptop? Take it to the service center.
By the way, on laptops and tablets there is often a case when, due to poor contact, the antenna turns off during shaking. In this case, you need to open the case and solder it back.

If the test device also does not see the home network, then the problem is on the router’s side. Try resetting it to factory settings using the “Reset” button and setting it up again.

If it doesn't help, take it in for repair.

Poor or unstable Wi-Fi signal level

The reason for the deterioration in the quality of a wireless home network is most often the presence of several more access points in the neighborhood. This is another one common reason Why does Wi-Fi turn off? lately in apartment buildings This is just some kind of punishment. Almost every apartment has a router and in every entrance there are a dozen or two networks. In this case, there are two options: the right one and the cheap one.
-Correct option, but more expensive. Why? But because you will have to buy equipment operating at a frequency of 5 GHz, fortunately now it is already relatively inexpensive. An inexpensive dual-band router will cost about 3 thousand rubles. For example, Totolink A2004NS router.

I think it’s clear that you will also need to buy additional adapters for a computer and laptop - that’s another couple of thousand. But with smartphones and tablets, things are worse - some already have support for the 5 GHz band, but simpler and cheaper ones will have to be left in the old range. But there will be no more problems with channel overlap and interference from neighbors.
- The cheap option is labor-intensive and hemorrhoid-intensive. Firstly, you will need to constantly scan the range inSSIDer program looking for a free channel, and then set it in the router settings.

Secondly, you will still have to drag most devices closer to the modem or router, since even if the selected channel is free, interference can come from busy neighboring ones. And there’s no getting around it. Just cover the house with 5 layers of foil.

I don't have networks in my neighborhood, but WiFi still turns off. Why?

In this case, the most common reason is the incorrect location of the access point in the apartment. To provide it with maximum coverage area, it must be located as close to the center of the home as possible. If you have points where Wi-Fi from the router still does not reach, then you need to set additional device- repeater.

It happens that you seem to have configured it correctly Wi-Fi, and he sometimes disconnects on its own. On outdated laptop models, there was a mechanical lever on the side to turn on the Wi-Fi network, which users accidentally turned off and the Internet and the network disappeared. Most users did not even realize that this lever existed. Today, on modern laptops, these levers have been removed and the controls have been transferred to the keyboard, but no one dares to write instructions for laptops, relying on the user’s intuition. The average person, even when he is advanced, generally suffers for a long time trying to find a simple solution, only because there are no instructions for the keyboard control keys. A person believes that if he gets a new laptop with the OS already installed, then it will be configured and all functions will be enabled. Thus, we need to list the most common reasons why the connection seems to be established, but keeps getting interrupted.

1. The signal source (router) is very far away and the signal is very weak. Install an antenna that will amplify the signal or make one yourself. Pay attention to the indicator in the lower right corner of the monitor, which looks like a ladder; it displays the signal level of the router.

2. There is a powerful source of interference near your network. Install an amplifying antenna or make one yourself.

3. On your old laptop, find the lever with the network icon and switch it to the “On” position.
On modern laptops this can be done using the keyboard. Find the “Fn” key (usually in the bottom rows). Press and hold it, press the key with the Wi-Fi icon (looks like an antenna with diverging waves). Along with this, the power indicator with the same icon on the laptop body should light up.

4. The most common reason for modern laptops The communication services of pre-installed operating systems are disabled by default. To check and activate services, you need to go to the “Start” menu - “Control Panel”, select “Programs and Features”. In the “Programs and Features” tab, click on “Turn Windows features on or off.”
In the window that pops up, point the arrow at each item that is not checked in turn, and read the hints about what they refer to. Check the boxes next to all items that relate to the network, Internet, and TCP protocol. Click OK. Wait for everything to install and reboot.

If you have installed licensed Windows and it is not contaminated with viruses and experimental software, your connection interruptions will stop. In other situations, calling a specialist is required.

Hello. Laptop owners very often contact me with questions regarding problems with connecting to the Internet. In the article, I have collected effective methods that will help fix problems with wifi on a laptop running Windows 10. Most often, the signal disappears or the wireless network adapter turns off spontaneously. Now let's look at these defects in more detail.

The laptop finds the desired access point, the connection is made, the Internet works. But not for long... After a while, an exclamation mark on the network connection icon is displayed in the tray. This indicates the limitations that have arisen. I have to connect again, but soon the problem makes itself felt.

Also, there are times when a red cross appears on the network status icon, indicating an unidentified connection error. Most often, such troubles appear after updating the system or Wi-fi driver. But first you should check whether other devices (smartphones, tablets) can connect to the access point in order to exclude a malfunction of the router.

And sometimes the laptop simply does not see wireless networks. Or they either appear in the list of available points or disappear. I am sure that many of you have encountered similar problems.

Proven solutions

Now we will look at several ways to eliminate them. I recommend using them in the order in which I will describe them.

Deleting a Wi-fi profile

There is a possibility that some changes have been made to the router settings, and the laptop is trying to use an “outdated” profile to connect. To delete it and trigger the creation of a new (updated) one, use the command:

netsh wlan delete profile name=

Go to Device Manager (via the control panel).
Expanding the category " Network adapters"to see a list of all modules

Find your adapter in the list and select “Update” in the context menu. Just don't rush to choose automatic search. We are interested in “Search on your computer”

A window will open where you need to uncheck the “Show compatible devices” option. On the right will load a list of all versions of your driver. We select based on the index:

We restart the system and try to connect.

These, of course, are not all methods for resolving problems with a Wi-fi network. A fairly common cause of malfunction is not the laptop module, but the router, which does not distribute the Internet wirelessly.

I hope this material helped you. If so, please share this article with your friends and colleagues on social networks.

Couldn't solve the problem? Write details in the comments, we’ll sort it out!

Best regards, Victor

As practice shows, it is not the connection process or even the setup process that causes the greatest problems for users when working with Wi-Fi and routers. Most big problem There comes a time when, after setting up, the Internet regularly disappears, a message about an interrupted connection constantly pops up, or you simply cannot open a single site on your laptop. In this material we will try to find out what causes such problems and what to do if Wi-Fi on a laptop turns off.

Reasons automatic shutdown networks are quite common

What could be more annoying than experiencing a connection dropout while working on a laptop? Just now everything was fine, and you were calmly watching a movie online, and now the playback has stopped, the movie has paused, and the Internet has completely disappeared. You may encounter a similar problem for a variety of reasons. The most common are the following:

Your laptop has battery saving mode enabled. This leads to the fact that after set periods of complete inactivity of the device, the wireless connection is interrupted automatically, the Wi-Fi adapter stops exchanging packets with the router and thereby saves battery power.
The router through which you access the network is too far away or there are obstacles between it and the laptop. The consequence may be a weak level of the received wireless signal, which leads to regular connection interruptions. This usually happens automatically and unnoticed by the user.
The Internet signal received by the router via cable or cellular network and converted into a wireless Wi-Fi signal is too weak. At such moments, you can observe that the laptop is still connected to Wi-Fi, but the Internet refuses to work. Also, a weak signal transmitted through the cable may cause the wireless connection between the router and laptop to turn off automatically.

The router through which you access the Internet is unstable, constantly freezes, and reboots spontaneously. In this case, Wi-Fi on your laptop is automatically turned off until restart router, restoring its software or until a forced reboot.
Your laptop has an inappropriate or outdated wireless adapter driver installed. As a result, the adapter becomes unstable, and it may spontaneously interrupt the connection or not find available networks at all.

Here we have listed only the most common problems that users regularly encounter. But at the same time, many do not know what to do next and how to get rid of problems.

Battery saving mode

We definitely recommend that the first thing you do is check whether the power saving mode is activated on your computer. This is a built-in feature of the Windows operating system that monitors how you use (or do not use) certain system elements and certain PC components. If any of them is idle without work long time, it is turned off automatically by the system. Windows does this in order to save battery power, which is sometimes the only power source for a laptop.

To disable battery saving by interrupting the wireless connection, you need to open the Control Panel of your PC, find the Power Options category and select Configure the power plan, which is currently installed on your system by default. Everything you need can be found at the Change advanced power settings link. In the small system window that opens, go to the following path: Wireless network adapter settings > Power saving mode and change the values to Maximum performance. Click Apply and close all windows. This procedure will help you get rid of the situation when the Internet turns off on demand operating system.

Weak router signal

Typically, a weak signal coming from a Wi-Fi router can cause the network connection to drop out regularly. Since the router signal is an ordinary radio wave, its power is influenced by a variety of factors, which may also affect the quality of the connection. The distance of the laptop from the router is not always the main reason for the decrease in signal strength. These may also be additional barriers located between the receiver and the wireless signal translator. For example, in a large room consisting of several rooms or offices, the walls separating the laptop and the router can significantly reduce the quality of the connection. In such cases, it is worth thinking about revising the location of the router or expanding the network radius using special amplifiers.

Also, the quality of the connection may be affected by the presence of electrical appliances that involuntarily interfere with the propagation of radio waves. As a result, the display regularly displays an error indicating that the connection has been lost.

Metal objects between Wi-Fi router and laptop, also significantly reduce the stability of the connection in the wireless network through which you access the Internet. Take this into account when organizing your home local network.

Weak network signal

If the signal from your internet provider via cable or cellular network is too weak, the router may become unstable, turning off the access point and interrupting the connection with devices connected to it. In such a situation, it is better to contact the provider’s support service, describing in detail the essence of the problem. If we are talking about a mobile router and its operation in places with uncertain signal reception, where on the router display or mobile device A message about searching for a network is displayed; an external antenna can improve the reception quality. To clarify information about network coverage of specific settlements you should also contact your provider's representatives.

Unstable operation of the router

If you observe unstable operation of the router, which leads to regular disconnection of the wireless connection, we recommend rebooting the device several times and closely monitoring it further work. Or go to its control panel and check for updates software and install them if necessary. Since the router runs a special operating system, it, like any other, can accumulate system errors, not work very stable and require periodic updates.

Internet speed can be easily checked using an online service speedtest.net- after all, if the values differ from those declared by the provider to a lesser extent, this is a reason to be puzzled by the quality and level of the signal.

Reinstalling the driver

Reinstalling the wireless adapter driver may also help. To do this you need to do the following:

go to the website of your laptop manufacturer;
enter the model of your device;
select the operating system;
download the latest version and install the new driver.

The method for downloading software varies depending on the device manufacturer and model. Try to download the latest versions of drivers for your operating system and device.

We have looked at the most popular reasons that lead to laptop WiFi constantly turning off. It’s good if the problem was solved by changing the power plan, and the performance of both the router and the laptop does not raise any questions. If the problem cannot be solved, it may be worth contacting a specialist.

Wireless connection lost. Why doesn't WiFi work on a laptop, and how to fix it?! Weak router signal