Reasons for unstable Internet operation via Wi-Fi. Unstable Wi-Fi connection: we solve the problem ourselves

Is your wireless Internet connection slow? You are suffering from an unstable Wi-Fi connection. Congestion problems are common in residential complexes or areas with high population density. In a world where an Internet connection is vital for almost everyone, having a slow Internet is more than just a nuisance.

Whether you're trying to work remotely, checking your status on social media, or just looking at restaurant reviews, a slow internet connection allows you to live life on your terms. The good news is that you won't have to deal with slow internet anymore. The solution is as simple as downloading the Speedify app from the AppStore or Google.

What Causes Wireless Congestion?

There may be dozens of stations in any given region. Each radio tower sends out invisible waves of radiation at its own frequency, from the tower to your radio. Adjusting the radio changes the channel. But what if there are two stations broadcasting on the same channel?

Luckily, the government regulates radio the same way they regulate wireless frequencies. If every radio station transmitter uses the same frequency, you'll hear a cacophony of distorted sounds - it's like trying to isolate one voice at the most crowded party.

Just like radio, Wi-Fi is a form of invisible radiation. Like all forms of radiation, wireless communications have a physical form, or frequency, that appears as a wave. This is also not limited to one form - there are several types of Wi-Fi frequencies used by computers, namely 2.4 GHz and 5 GHz. While the government maintains strict controls over how devices connect to each frequency, there are limits to 2.4GHz technology.

2.4 GHz offers 3 non-overlapping channels. 5 GHz offers 23 non-overlapping channels and shorter range, meaning fewer overlapping radio signals.

The problem with 2.4 GHz: Most consumer technologies, including Bluetooth and a number of wireless technologies, use the same 2.4 GHz frequency which has only three non-overlapping channels. In addition, 2.4 GHz has a long range, which leads to various Wi-Fi signals overlapping each other.

The solution is simple: determine which channels are not overloaded and switch the device to it. If this does not help, consider changing your router to a 5 GHz model. Keep in mind that many fancy routers offer trimaran and other features. The best option is always a dual-band device.

Tools to Solve Wireless Congestion

First, you must determine which Wi-Fi channel provides reliability and speed. Second (and last) you should change your router's channel. This means you need to use a tool to analyze and change settings on your router.

In Windows, there are a huge number of tools that can identify the best channels. One of the best options comes from the Windows Store: Wireless Analyzer.

How to Use WiFi Analyzer

Just install and launch the application. Once installed, you will be able to launch it in Windows search (Windows key + Q), enter the type wireless analyzer, and select the store, as a result, you may have to install the application before you can proceed to launch it.

The program should detect your Wi-Fi signal and its strength, which ranges from 0 to -100 decibel milliwatts (dBm), the lower the better. If it shows 0 dBm, then you are near the transmitter. At -100 dBm your connection will not work. A number lower (technically negative lower) than -70 means a strong connection. -80 dBm or higher means a bad connection.

Next, click on analysis in the top menu bar. The WiFi Analyzer displays a visualization of the various overlapping wireless networks in your area. If two networks are broadcasting on the same channel, you will notice that they will overlap. Each channel represents a number between 1 and 161.

This is what it looks like when two networks intersect:

If you don't have Windows 8 or a newer OS, you could try it out from nirsoft WifiInfoView, which offers similar features as the WiFi analyzer.

How to change the channel on a router

Now that you know which Wi-Fi channel works best, you will need to change your router settings. Accessing your router's settings requires a browser such as Chrome. Access to its settings varies between different router models, but there are some general rules.

Note: Most routers can use “admin” as the login and “password” as the password. Registration information may also be printed on the back of the router or in the instruction manual that came with it. If you can't access your router, try searching the Internet for a way to open your individual router.

Ultimately, the best way to tell if you've improved your online speed is to test it. I recommend using SpeedTest.net. This is a good way to determine which Wi-Fi channel will have the optimal combination of speed and reliability. If this doesn't work, you might want to try some other methods to improve your router's performance.

After making all the necessary settings, you should restart the computer (for both players) and check the result. Often this helps, and you can start playing.

Reason 2: Problems with the client

This problem is quite rare, but it cannot be ignored. Problems with the connection may be due to a faulty client of one of the users.

As a rule, this happens for two reasons - either Tunngle crashes, or the client update occurred with errors.

In both cases, the solution is the same - you need to reinstall the program.

Usually after this everything starts to work if that was indeed the problem.

Reason 3: Connection problems

The most common cause of this error. In most cases, it all comes down to the fact that the user has a really bad connection quality, and this requires changing the provider and improving the equipment.

However, other factors can also cause connection quality problems. They are worth checking, especially if you have complete confidence in the high quality of the connection and equipment.

Conclusion

As mentioned earlier, when solving this problem, it is important to carry out all the described measures for both players. It may be that each user has their own problems with the client or network. Therefore, working together to solve the problem will lead to complete elimination of the problem and a comfortable game.

Hardly with a computer, but what does money have to do with it? You pay for the Internet, you paid for laying the cable - go to court or just write a statement of claim and show it to the provider, I think. It won’t go to court, that’s their fault. You pay, among other things, for the cable to be in good working order. To you as a consumer. It doesn’t matter at all what happened to the cable behind the door of your apartment; by the way, you can also raise the question of a refund, the service provided was not of high quality

Well, the money is here despite the fact that calling a specialist costs 350 rubles. + cable laying costs 18 rubles per meter, but here it will be plus or minus 20 meters. According to the contract, I am responsible for the cable in the apartment, and I have to pay. In general, it is easier to change providers. The main thing is that everything is in order with the computer.

I had such a problem, there was a constant connection breakdown, it cost me two months of “fighting” with the provider, I heard a lot of tales from the technical support service, both about myself and about my computer. I reached the CEO of the provider. Result: they came to replace the cable, note it free of charge, the chief engineer personally came with an apology, and after a month of calls from those. support asking if everything is fine with me.... So, don’t be discouraged, demand a service of proper quality, as max-02, our respected moderator, correctly said.

And I struggled and called them for more than 2 years. As a result, they sent me a signalman who checked the wire and connection and said that everything was in order. I paid him 1000 rubles. for installing a new cable, and forgot about the outages. We just laid the wire ourselves initially.

*****.ru 01/20/2011

Thank you, I understand everything. I'm changing provider!

And I have the following problem: I bought a new Sony Bravia TV (LCD), they installed a decoder for digital, but after a week the picture began to “freeze” from time to time and the sound went away. The technician came, checked the cable, removed the decoder from the telephone plug and said, that everything is in order. However, I didn’t take the money. For 2 - 3 weeks everything worked fine, but then everything came back. The technical support service advised me to turn the modem (ADSL) on and off every(!) time. Is this really normal?!

The support team consists of people like us. someone responsible. some are not very good, while others don’t care at all, so they shift the problems onto the user’s shoulders. In theory, we, the users, don’t care. what about the cable (unless we use it for drying clothes at the same time), it doesn’t matter what we do with the modem, because we pay with our own money, the provider, technical support can say whatever they want. They just understand that this is not America and that we have not yet learned how to sue on every issue, but in court they will be obliged to change the cable and repair the modem without talking.

Slow, unstable Internet is a problem not only for many residents of the Moscow region, but also for the capital. In shopping and entertainment centers, office complexes, basements, underground parking lots and construction sites, 4G reception does not allow full use of the Internet. What to do if the network speed in a country house, country house or facility within the city is several times lower than stated? You can resort to two methods to solve this problem:

1. Improve unstable Internet using improvised methods.
2. Install professional.

By building an amplifier at home from a coffee can, CDs or other scrap materials, you will achieve negligible results. To be sure to eliminate an unstable Internet connection, it is optimal to install a YS System amplifier. This is a 100% guarantee of fast network access and stable 3G and 4G operation anywhere.

Solving the problem with unstable Wi-Fi

The main problems related to the unstable operation of the fourth generation wireless Internet are:

1. Lost connection.
2. Low data transfer speed.
3. Difficulties connecting to the network via a Wi-Fi router.

This is not a complete list of the consequences that arise when the Internet is unstable. Agree, there is nothing more annoying than the “No network access” error on your computer monitor, laptop or smartphone screen. But fortunately, there is a universal solution that does not require large amounts of time and money - modems and antennas for amplifying the Internet signal YS System. Why should you buy new generation equipment? The reasons for purchasing high-tech devices are expressed in terms of opportunity.

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 were turned off, the router resets the DNS server settings.

Preface... For a solution to the problem with the router (router), see below ↓

It all started with the fact that I first connected the router via LAN to a desktop computer. I wrote down everything I needed, the router turned on and started working, the Internet appeared, and I was happy. Then I thought I should check the Wi-Fi.

I turned on the laptop, it found a wireless connection to the router, connected everything, the Internet started working, and sites began to open. Well, I also decided to check the wireless Wi-Fi connection from my phone and tablet. And everything turned out to be fine there, the connection was successful, and the Internet appeared.

The next day, turn on the router, then a laptop, and ! Or rather, it says that the network is without access to the Internet. The wireless connection itself is there, Wi-Fi is working and the network is connected, but in the corner near the clock there is an icon that says “network without Internet access.”

At first I thought there were problems with the provider. I think as a copywriter, logically, you need to turn on your desktop computer and see if there is Internet there! I turned on the computer, which is connected via LAN to the local network - the Internet works.

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 were turned off, the router resets the DNS server settings. Preface... Solution...

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 server.

Preface... For a solution to the problem with the router (router), see below ↓

It all started with the fact that I first connected the router via LAN to a desktop computer. I wrote down everything I needed, the router turned on and started working, the Internet appeared, and I was happy. Then I thought I should check the Wi-Fi.

I turned on the laptop, it found a wireless connection to the router, connected everything, the Internet started working, and sites began to open. Well, I also decided to check the wireless Wi-Fi connection from my phone and tablet. And everything turned out to be fine there, the connection was successful, and the Internet appeared.

The next day, turn on the router, then a laptop, and ! Or rather, it says that the network is without access to the Internet. The wireless connection itself is there, Wi-Fi is working and the network is connected, but in the corner near the clock there is an icon that says “network without Internet access.”

At first I thought there were problems with the provider. I think as a copywriter, logically, you need to turn on your desktop computer and see if there is Internet there! I turned on the computer, which is connected via LAN to the local network - the Internet works.

Why on a laptop?Wi-Fi network disappears?

I decided that the problem was with the D-Link router! I went into the admin panel of the router, did some digging, adjusted the DNS settings, entered everything again, connected it, and I saw that Wi-Fi was working. I specially turned everything off and then turned it on again. I see that everything is working, the Internet has not disappeared anywhere, there is Wi-Fi on the laptop. Well, I was happy, turned everything off and went about my business. In the evening I arrive, turn on the router, turn on the computer and laptop, and the Wi-Fi network disappears again. And again the same nonsense, no internet connection.

That’s when I got upset and started looking for information, maybe someone had similar problems with the router. But I couldn’t find a specific solution to my problem anywhere. Here are some solutions that I found on the forums:

User tips:

1) Try setting fixedIP depending onMAC. And check the DHCP on the router, lease time settings.

2) Sometimes routers stop seeing wi-fi or cannot connect. Just reboot your router.

3) The problem may be due to filtering by MAC, which was set on the computer by the provider, and not on the router.

4) You need to update the router firmware.

5) You may need to disable the 802.11n mode in the router settings and enable not the mixed mode (b/g/n), but the “g only” mode.

6) Set your router to WPA/WPA2 mode or enable MAC address filtering.

7) There may be problems with the laptop's network card not working properly.

Unfortunately, the advice didn’t help me, and I didn’t want to call the provider. Therefore, I decided to look for a way to solve the problem with the router, as always, by trial and error. And I found it :) It turned out to be simple!

Solving the problem with the routerD-Link and network setup correctly!

After briefly constructing logical chains between the router and two computers, I came to the conclusion that the reason lies in the laptop.

First of all, I must say that I did not change anything in the wireless network settings, and the WPA/WPA2 mode was already set in advance.

I solved the problem with the router easily! I logged into the laptop network and found that the settings were set to automatic for obtaining an IP address and DNS server.

But since I only corrected DNS on the router, I decided to enter my DNS server address and an alternative DNS there, which can be viewed in the network settings on a desktop computer, or you can ask your provider. I received this picture:

My surprise was immeasurable when I saw that everything worked. Then I deliberately turned everything off, and the next day with wild doubt I turned on the router and laptop, expecting that there would be problems with Wi-Fi again. But no, everything worked very quickly and well, and the “” site opened without problems.

Pay attention to how to detect problems with Wi-Fi if it says that the Internet is connected and everything is working. In the first picture (faulty Wi-Fi), the transfer of information in bytes is much less than in the second (faulty Wi-Fi):

Here is a story that proves that solving a problem is not always difficult.

P.S.: an interesting fact that is still not clear to me. On the tablet and on the phone, I didn’t register any settings for wireless connection to Wi-Fi, they were automatic there and still are, but what’s interesting is that Wi-Fi Internet on the phone and on the tablet worked as it did then, so it is now. Paradox…

Step-by-step instructions with photos:

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The Internet has become an integral part of our lives. And it doesn’t matter for what purpose we use it. As they say, it's everyone's business. When, for some reason, the Internet disappears, for most, the computer becomes unnecessary. After all, nowadays everything is on the Internet: friends, work, music, movies, games, information. And many people first start calling the support service, calling specialists, paying money for it and wasting their time and nerves. And you just need to ask the question “Why did the Internet disappear?” In 90% of cases, you can restore everything on your own, or at least you will know what the reason is.

Why did the Internet disappear on my computer?

All thousand reasons for the lack of Internet, roughly speaking, can be divided into two categories. The first is internal causes, breakdowns. I will include everything that concerns your computer. This includes the settings of your operating system, in particular Windows, as well as damage or breakdown of your hardware (computer or laptop).

The second category is everything outside of your computer, external causes. These include modems, routers, Internet provider, sockets, cables, and, in the end, the banal lack of electricity at the outlet. 🙂

First, let’s look at the entire chain of where and how the Internet comes to us for a better understanding of what hurts where. We get Internet from Internet providers. Whether it's home Internet or mobile. We give them money, they give us internet. By the way, at this stage there is already one reason why the Internet may disappear: the money on your balance has run out. Then the Internet runs through cables to our house and the first person to meet it is our modem and/or router. After that, the Internet is transmitted via cable or wifi to our computer, where a network card or wifi adapter receives it. Well, then the operating system itself and its programs begin to work. Well, that's it in a nutshell.

Diagnosis of lack of Internet or why there is no Internet

When you discover that the Internet is “lost,” the first and most logical diagnostic method would be to shout to your mother or wife in the next room, “Do you have Internet?” Well, do you understand what I mean? If there are other gadgets in the house that receive the Internet, first of all check whether it is available on them. If there is Internet on them, then the problem is in your computer. And the first thing you should do is restart your computer or gadget. Let's talk about the rest further.

External factors of lack of Internet

If the Internet is not available on them either, we quickly run to the modem. On the modem we look at which lights are on. This is different for everyone, but as a rule, the Power light should be on, the ADSL light should be on, this is a wire coming from the telephone line or possibly from another source. The third light is Wi-Fi or LAN (local area network wire connecting your modem to your computer). And one more light, this is the network status or just the Internet. The light lets you know whether the modem is receiving Internet or not. I told you this in a simplified version.

In general, you, of course, should know your modem and the number of lights that should be on there. First of all, if something lights up incorrectly or in the wrong color (not green in most cases), simply turn the modem off and on again, that is, reboot it. In 70% of cases this helps. If the Internet still doesn’t appear, let’s look at what’s wrong. If the ADSL indicator is not on, then the first thing to do is pick up your home phone and check for dial tone. If they are not there, then the problem is on the line and all you can do is wait. If there are beeps, then the problem is in the wire running from the network to the modem or in the splitter. Check their condition. If all else fails, call technical support. By the way, the splitter is often the cause of breakdown. If you have a spare or have someone to borrow, then replace it and see what happens.

Next, LAN or Wi-Fi indicator. If it does not light up, the problem is either in the wire running from the modem to the computer, or in the network card/Wi-Fi adapter of the computer itself. I want to say right away, even if you check everything and everything is fine in all respects, do not forget that the failure may be in the modem itself, but there is nothing we can do about it ourselves. After checking the local network wire, let's see how things are on the computer itself.

An internal factor is the lack of Internet.

On your computer, go to the control panel and select “view network status and tasks” and in the left column select “Change adapter settings.”

All currently available network connections will appear in front of us. As you can see in the picture, I have a wireless Wi-Fi connection and a network cable connection available.

Now we are interested in connecting via cable or “LAN”. The cable connection can have three modes.

If it shows that the network connection is disabled, then double-click with the left button to turn it on or right-click on the shortcut and select “enable” from the context menu

If your connection displays the status “Network cable not connected,” then there is most likely a problem with the cable. Either it is broken, or the chips at the ends of the cable are damaged. Maybe you just didn't fully insert the chip into the connector. The problem may also be in the network card itself. You can check if everything is ok with the network card in the “Device Manager”. On the desktop, right-click on the “My Computer” shortcut and select “Device Manager” from the context menu.

There we look for “Network adapters”. Let's unfold it and look. I have Wi-Fi on my laptop and there is one network card, which is what we see.

The first is my device that receives Wi-Fi, and the second item is my network card. If your network card is not in the list of network adapters, then it is either disconnected or at the end of its life. I had this situation on my laptop where the wires from the Wi-Fi were disconnected. And in the task manager the adapter appeared and disappeared.

You should also pay attention in the task manager to elements with an exclamation mark.

This means that the hardware is installed in the computer, but software, that is, drivers, has not yet been installed on it. This also happens during various failures, and such exclamation marks, as a rule, should not exist, especially on the equipment that you use, in particular on a network card or Wi-Fi adapter. In such situations, you just need to update or install the drivers.

In custody.

We have discussed the main points. The main thing is to determine what is the reason for the lack of Internet, external or internal. And a couple of cases from my practice.

The Internet disappeared, for a long time I did not know what the reason was. It turned out that the settings for the modem were changed by the provider. I just don't go to their website and didn't know about it. Imagine what I didn’t do. I checked everything that could be checked. As for settings, your ISP should have a modem setup guide and a Windows setup guide on their website. You should know and be able to use these instructions and then you will save a lot of time and money.

At least I told you. I would like to tell you everything, but there is not enough ink. If you have any questions, write in the comments, I will definitely help, with the help of your questions I will supplement the article and write new ones on this topic.

Let's consider today the problem when the Wi-Fi network is unstable, and when the connection to the Wi-Fi network is periodically interrupted, or the Internet connection is lost. It seems to me that this is even worse than when the Internet does not work at all. Because the problem is not clear, everything seems to work, but not as it should, the signal disappears, devices turn off, and other incomprehensible moments. It’s just that when something doesn’t work, it’s at least clear where to look for a solution, but in such a situation nothing is clear at all.

What causes an unstable Wi-Fi connection:

• Periodic disconnections of devices from the Wi-Fi network. Or the Internet simply cuts out for a while (without access to the Internet), and everything starts working again. A very popular problem that causes a lot of inconvenience. For example, a laptop is connected to a Wi-Fi network, and the Internet is working. But periodically a yellow exclamation mark appears next to the connection icon, and the Internet disappears. Loading files, etc. gets lost. And as a rule, after a while the connection is restored.
• Devices do not connect to the Wi-Fi network the first time, or do not see the Wi-Fi network.
• The Wi-Fi network completely disappears and appears.
• Very low internet speed over wireless network (everything is fine via cable).
• When the Wi-Fi connection only works close to the router.
• The wireless network signal level is constantly changing.

This, of course, is not the entire list of problems that are associated with unstable operation of wireless networks. There may be many more. Very often, Wi-Fi works fine for a while, and then problems begin and go away again. You may also notice the appearance of problems, for example in the evenings, or at other times of the day.

If you have something similar, and you seem to have an Internet connection, but you can’t always use it ( use without any problems), then now we will try to fix everything.

Changing the wireless network channel when Wi-Fi is unstable

This is the first and most important tip that you should definitely try. We know that every Wi-Fi network operates on some channel. If there are many of these networks, then they begin to interfere with each other, and interference appears. As a result, Wi-Fi is unstable. Well, and various incomprehensible problems that I wrote about above, and which you have most likely already encountered.

You need to change the Wi-Fi network channel in the router settings. I wrote in detail about channels, about finding a free one and about changing them on different models of routers in a separate instruction: How to find a free Wi-Fi channel and change the channel on the router?

You can try setting some kind of static channel (if you have Auto), or vice versa, set Auto if a static channel was selected. In the article linked above, I wrote about finding the freest channel using the inSSIDer program. You can use it.

You just need to go to the router settings, go to the tab where you configure the wireless network, and in the Channel item change the channel. This is what it looks like on Tp-Link routers:

After each channel change, do not forget save the settings and reboot the router. Be sure to try several options. It should help.

As for interference, household appliances can create it. Do not place the router near microwave ovens, cordless phones, etc.

The Internet is cut off via Wi-Fi: router firmware, and other tips

Almost always, such problems in the wireless network occur due to the router. Not uncommonly, this is due to the firmware. Therefore, I strongly recommend updating the firmware of your router. We have instructions on our website for all popular manufacturers. Here, for example, are instructions for Tp-Link.

It is also possible that the wireless network may be unstable due to some technical problems with the router. Something with the board itself, or the power adapter. By the way, it is power adapters that very often cause such problems. The router simply does not receive the necessary power and there are connection breaks, etc. Well, strong changes in the power supply can affect the operation of the router. If the Internet cuts out after you create some kind of load on the router (online videos, games, torrents, connecting new devices, etc.), then this is usually due to an inexpensive (not powerful) router.

Need to eliminate problems on the ISP side. It may well be that the connection is broken on its end, and the router has nothing to do with it. It’s very easy to check, just connect the Internet directly to your computer and check its operation.

For many people, the connection breaks down in rooms where the Wi-Fi network signal is very poor. When, for example, only one division of the network signal remains on the device.

In such a situation, you need to increase the range of your Wi-Fi network. We have an article on this topic: How to strengthen the signal of a Wi-Fi network? We increase the Wi-Fi range. Or, install a repeater. After this, problems with Internet interruptions should disappear.

And if your devices at home find a lot of available networks that operate at a frequency of 2.4 GHz (as is most likely your network), and changing the channel, and even changing the router does not produce results, and the Wi-Fi network is very unstable, then this problem can be solved by purchasing a router that supports operation at a frequency of 5 GHz. This frequency is practically free. I just know a case where there were a lot of wireless networks in the house, and Wi-Fi was simply impossible to use until they switched to the 5 GHz frequency.

If the Internet disappears on only one laptop

And of course, it’s not uncommon for all devices to connect and work with a wireless network without any problems or disconnections, but one device keeps disconnecting, losing connection, etc. It’s not hard to guess that most often this device is called a laptop and runs on Windows.

In such cases, it is imperative to update the wireless adapter driver. I wrote how to do this. It is possible that the problem may be in the hardware. And it appears very often after disassembling the laptop (cleaning dust). Why is that? It’s just that during assembly, the antenna that is built into the laptop often suffers. These are the problems with working with Wi-Fi networks. Very often, after this the Internet only works near the router itself.

These are the tips: if you have interesting information on this topic, personal experience, then write in the comments. You can ask questions there, I will definitely answer!

Unfortunately, users sometimes encounter situations where the Internet disappears. There can be many reasons for this: network card problems, problems with the provider, features of anti-virus software. This article suggests ways to resolve the issue.

The Internet disappears - why?

First of all, you need to check the connection, whether individual computers on the network are accessible to you. There is a quick way to find out the cause of the problem - launch the command line. Its main advantage is that Windows functions are not involved. Through Start, open the command line and access individual computers. We use the command ipconfig, Enter. If everything is fine, we get a result that shows that everything is fine with the local connection. In this window you can replace the available Beeline remote computer that provides Internet services.

In some cases, after entering the ipconfig command, nothing happens, this means that there is no Internet at all.

The connection can be checked directly from the operating system, without using the command line. Start->All Programs ->Accessories->Communications ->Network Connections. Click the Local Area Connection icon and look at the Accepted parameter; if it is 0, there is no access to the network.

You also need to make sure that packets can be received and sent over the network. The ping command will help. For the Beeline provider, the whole command looks like this - ping beeline.ru then Enter. If there is a delay, on average 26 ms, everything should be fine with the Internet. If you see the message Request timed out, there is a problem with the network.

If your internet goes out, call your provider. Find out from him whether the TCP/IP Internet protocol settings or VPN settings have changed, check the balance.

The Internet disappears for reasons such as a broken cable, Windows problems, a faulty network card or motherboard. To find out for sure, you can do the following. Take a laptop, connect via a local line, if packets are exchanged with the remote computer, then everything is fine with the cable, and the problem is in the computer that does not have Internet. Check your TCP/IP protocol settings with your provider. It may no longer be possible to obtain an IP address automatically, which means you need to find out the parameters and enter them manually. If you have a VPN connection, delete it, restart your computer, and create it again.

If you have a built-in network card, try using an external one. Also check whether the drivers are installed; in some cases, simply reinstalling them helps. When using an external adapter, replace it, install drivers and try to access the Internet. If all else fails, boot your computer in safe mode with network driver support and go online again. Failure again? Check your computer for viruses. If this does not help, you will have to reinstall the operating system. Most likely, this is the problem.

Sometimes you come across computers that have a huge number of programs installed. In this case, it is quite difficult to get to the bottom of the reason for the lack of Internet. Check the cable, it may be broken, this is the last thing to do.

Quite often, the Internet disappears due to the fault of the provider, especially if you are using a modem connection rather than a dedicated one. Once you call the operator and tell about your problem, after a while the Internet appears. VolgaTelecom has always had similar problems, the Internet disappeared several times a day, old-style modems required constant firmware updating. If you still have a modem connection, try changing your provider and using a local connection.

Wireless networks are becoming more advanced every year and provide more stable and high-quality communications. Nevertheless, unexpected problems have not gone away, and users periodically have to find themselves in situations where communication, which previously worked quite well, suddenly deteriorates catastrophically.

Among the most common troubles it is worth highlighting:

• Lack of stable connection of smartphones, laptops and other devices. For example, a device connected to the network works normally for some time, but then, after disconnecting (user-initiated or spontaneous), it can no longer connect again, or even does not detect the network at all;
• Constantly dropping connection. Almost everyone who regularly uses Wi-Fi has to deal with moments when, after connecting, the connection appears and then disappears, preventing them from working normally;
• Low connection speed. We have already discussed this topic. In this case, we are talking about a sudden drop in speed, which has nothing to do with the actions of the provider, a change in tariff or lack of payment;
• The inability to connect due to the fact that the device has stopped finding the wireless network you are using, but it registers other networks. In this situation, first of all, you need to make sure that the Wi-Fi router is really turned on.

What causes problems with Wi-Fi and how to find a way out of the situation?

Wireless network problems caused by channel interference

What to do in such cases? One option is to organize a change in the channel on which the network operates. Usually, the default mode in the router settings is Auto. In this mode, the router independently searches for a free network and subsequently works in it. However, this is not always possible due to incorrect definition of a free network, a static channel, or simply a lack of router support for this mode.

Channel change algorithm

Before you start making changes, you can try simply rebooting the router. Sometimes it turns out that such a simple action eliminates the problem and eliminates the need to make any complex settings.

Otherwise, you can try to find the most free channel using the program. It’s even easier to change the channel at random, trying several different options. The user only needs to go to the router settings and perform a series of actions, the sequence of which depends on the specific device model. For example, when using company routers TP-Link after entering the settings you need to go to wireless mode tab(Wireless) and change the value of the item "Channel".