Why does the wi-fi network disappear and appear? Unstable Wi-Fi connection: we solve the problem ourselves

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

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

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

It minimizes compatibility issues and this technology is rapidly developing.

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

No wifi icon

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

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

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

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

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

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

Installation for home

The first thing you need to pay attention to is the range of the antennas, the edition of 802.11 technology, the number of antennas, and the rest does not matter. Cool "gadgets" are just a waste of money. The next point is the thickness of the floor walls. If you have thick walls, then you need to opt for a router with three antennas or two, but with a signal strength of 5 dbi. This will allow you to get good signal strength and “break through” walls with a radio wave.

If possible, place your WiFi signal transmission device closer to the center of the apartment, which will allow the router's sine wave to spread smoothly and evenly across the entire living area.

If your apartment or house has a microwave oven or radiotelephone, then you should try to place the WiFi repeater so that the distance between these devices is at least 5 - 8 meters. Otherwise, the waves will intersect, and the effect of “bandwidth jamming” will result.

We have come close to the subject of the problem indicated in the question. Let's figure out why the signal or speed may disappear, as well as where all the signal coming from the router may go.

Where does Internet speed go?

When a WiFi router is installed, it often happens that your neighbors already have one and can jam your signal due to its greater power. As described above, microwaves and cordless phones can affect the signal. To get rid of this, you need to specially configure your router. Settings require transmission frequency and channel. These settings can be found in the "Wireless" section of the router interface.

There is another option that your neighbors take away your Internet if they know your password. You can simply hack it and use the network secretly from you. Therefore, you should change your WiFi network password. This is also done in the "Wireless" section in the router interface.

Your router may fail due to voltage fluctuations in the electrical network, or manufacturing defects, or due to time of use. In this case, your Internet provider, which provides connection to the apartment, can help you. Contact him, explain the situation, and specialists, for their part, will check the line and connection to you. If there is something wrong with the device, they will tell you about it. You can also connect your laptop to another router, for example, your neighbor's. If everything goes well, then your router needs to be replaced.

Signal loss can be caused by a problem on the provider's line - damage to the optical line between houses or the twisted pair cable at the entrance. You can also clarify this point with your provider.

And the last possible option is local problems with the computer. The functionality is checked by connecting another computer with a cable to the router or mobile device via WiFi. If everything works flawlessly, you need to look for the problem in your laptop.

I hope everything works out for you.

Best regards, Evgeniy.

Electronic gadgets: computers, laptops, smartphones and tablets are found in every home. To ensure that all devices receive unlimited access to the Internet, users install routers in their apartments. These devices provide wireless access to the network from a single exit point. But here people are faced with a situation where the Internet periodically disappears through the router. We'll tell you how to solve the problem yourself, without involving specialists.

Wi fi can disappear on any device

Possible reasons

If the Internet speed fluctuates, check the router's access to the network. When access is stable, the indicators should glow a steady green light. When there is a problem on the line, the indicators flash. The network disappears due to interference or incorrect device settings. You can solve the situation by rebooting the router; there is a button on the back panel for this.

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If the Wi-Fi connection is lost, the following messages are displayed on the monitor screen:

No internet access. The problem is caused by an incorrect connection or a problem with the line. In this case, the Internet via cable connection and remote access disappears.
Obtaining an IP address. due to incorrect network settings. Check the setting in Network Sharing Center.
Lost connection. If constant, adjust the power setting. In particular, disable disabling network adapters to save power.

If the signal is unstable and the speed leaves much to be desired, contact your provider’s technical support.

Important! The provider's responsibilities do not include setting up a home connection if this item is not specified in the connection agreement!

If there are no technical faults on the line, but the signal level is still low, perhaps the problem lies in the reception. If Wi-Fi on your phone is lost, move your gadget closer to the access point. The speed has increased, which means there is interference on the path between the device and the router. The way out would be to install an additional amplifying antenna. When the signal level does not depend on the distance between the device and the access point, you need to look for a free connection channel. This situation is typical for apartment buildings, where several routers operate at the same frequency. Let's look at how to solve this problem.

How to connect to a free frequency?

If Wi-Fi on the router has disappeared, then you need to install the InSSIDer program on your computer. The application will scan for available wireless networks and display free channels with a graphical image.

Please note that the utility costs money. The free version is only available for Android mobile devices.

Let's understand how the utility works.

From the same graph it is clear that the fourth channel is free. To troubleshoot connection problems, you need to connect the router to a different frequency.

Please note that it is recommended to select a channel that is farthest away from other frequencies in use. It is worth considering that the frequency width varies between 20-40 MHz, and the channels are located 5 MHz from one another. Accordingly, the selected frequency will invariably overlap with neighboring ones. Choosing the right channel will fix the problem when the laptop loses the Wi-Fi network. It is worth noting that router models have from 11 to 13 channels of available connection, so reconfiguring the device will not be difficult.

If the network on your phone disappears, the mobile application will help. This utility will not only determine the free frequency, but will also help check the quality of reception at various points in the apartment. The application displays a graphical representation of wireless networks, allowing you to select the optimal frequency. Thanks to this, you can correct the situation when Wi-Fi on your tablet or mobile device disappears.

Other options

You need to check the default settings of the router.

The installed parameters must match the recommended ones. If there are discrepancies, the device does not work correctly. Some routers may not be able to handle the flow of information.
In addition, budget models do not support dual-frequency operation. High speed and dual-stream connection overheat the router. The result is unstable operation and causeless connection breaks. In this case, the solution to the problem is to replace the router.

There are several options for getting out of the situation; using the tips provided, you can establish a stable wireless connection in your apartment.

The problem when the Internet disappears on a laptop or personal computer is one of the most common. At the same time, there can be a lot of reasons why the Internet does not work: starting from problems associated with problems with the provider’s network, ending with blocking of the antivirus program installed on your device. If, while using a computer, the Internet suddenly disappears and you cannot access any web page, then in order to fix the problem, you should take into account a number of factors, which are discussed below.

Internet lost: the most common reasons.

So, first of all, you need to check the health of the local connection. The fastest way to check the cause of the network loss is to use the command line. The advantage of this method is that it does not use Windows properties. To do this you need to use the algorithm:

Start - All Programs - Accessories - Command Prompt. After this, using the protocols and the ipconfig command, we access individual PCs (you must press OK or Enter). If the dialog box displays the message Setting up the IP protocol for Windows, then the computer is not connected to the Internet (the cable may have come loose or there are problems with the provider). You can check the connection without using the command line. To do this, enter the command: Start - All Programs Accessories Communications - Network Connections. Double-right click on Local Area Connection and select the Accepted option. If the value is 0, then there is no connection.

If it turns out that the problem why the Internet does not work on a laptop, tablet, or smartphone via Wi-Fi is precisely the lack of a network, then you need to contact your provider and find out about possible problems or changes in the network protocol parameters settings. It is also possible that you accidentally turned off your Wi-Fi router or your account has run out of funds.

Physical damage.

A less pleasant reason for the lack of connection may be physical malfunctions of the cable, network card, motherboard, as well as problems with the OS itself. In order to diagnose them, you need to check the Internet protocol settings with your provider and immediately obtain the IP and DNS server addresses. Ideal if you have an additional computer or laptop. It needs to be connected to the local network and start exchanging packets with a remote PC. If there are no problems with access on another PC, then the problem is still in the computer that does not see the network.

The main types of problems in this case:

1) It is possible that there is a problem with the computer’s built-in network card. To check if it is working properly, you should use an external network card. First, you need to disable the built-in one.

2) There are no drivers for the network card (or they need to be updated or reinstalled).

3) If you are using an external model of network adapter, then you should try replacing it. In order to diagnose the reason why the Internet disappears, you need to replace the network card, install new drivers (or update existing ones) and make a new attempt to access the Internet.

4) If after carrying out the above procedures there is no result and the Internet still does not work, but the network card is working, then you should load Safe Mode (with support for network drivers) and log into the network. If in this case it was not possible to access the Internet, then you need to check your PC for viruses. You can also reinstall the OS.

5) Your PC may be too loaded with unnecessary programs. The problem of the inability to connect to the Internet is especially pressing if two anti-virus programs are installed, the operation of which leads to a conflict.

6) Very often, connection problems can arise due to incorrect settings of the modem or Wi-Fi router itself. Check the correct settings with the provider's technical support or on their official website. You can then set up your own Internet connection on your modem or router by going to http://192.168.1.1 or http://192.168.0.1 depending on your device model. IP addresses and this is the entrance to the admin panel for managing the settings of ADSL and Wi-Fi routers (login and password are usually admin admin).

7) Another problem may be a weak Wi-Fi connection signal. If Wi-Fi reception is poor, the Internet may noticeably slow down, cut out, or not work at all. Therefore, make sure that the reception quality from your router is acceptable, if necessary, conduct an experiment. Take a smartphone, tablet (for example on Android OS) or laptop and move closer to the access point. If the Internet begins to work better, then the problem is a weak Wi-Fi signal.

As for the most common reasons why the Internet does not work, they are related to the provider (especially if a connection is used via a modem). Therefore, you should initially call your provider and try to diagnose the problem with it.

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 trivial: 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 a tambourine, friends, and see you again!

Hello, Tigran!

Installation for home

If possible, place your WiFi signal transmission device closer to the center of the apartment, which will allow the router's sine wave to spread smoothly and evenly across the entire living area.

We have come close to the subject of the problem indicated in the question. Let's figure out why the signal or speed may disappear, as well as where all the signal coming from the router may go.

Where does Internet speed go?

I hope everything works out for you.

Best regards, Evgeniy.

Gregory

01/23/2019 at 10:04 (4 weeks ago)

I started experimenting when WI-FI on modern smartphones periodically disappeared. On both. The modem needed to be rebooted. I started changing channels and WI-FI settings. It didn't help. I thought it was the modem's fault. I bought another one for the experiment, the same one, used. It didn't help. I started changing the settings again. Changed the standard b/g auto to only b, only g. I changed the transfer speed from automatic to maximum (54 Mbit/s). I even changed the transmitter power. Unsuccessfully.

Using the program Inssider 1.2.8.0331 (suitable for my XP on a laptop with a WI-FI adapter), I found out that somewhere close neighbors have a very powerful WI-FI, the signal of which is only slightly weaker than that of my weak old man “ one-horned Pirelli. The 5GHz band is completely free, but my Pirelli only works in the 2.4 GHz band. :(((Moreover, the neighbor’s router is turned on in automatic channel selection mode. I saw how it suddenly changed channel from 11 to the first. So I can’t maneuver by “escaping” to a free channel.

I tried to overcome the “one-hornedness” by purchasing a new “two-horned” router TL-WR841N, connecting its “WAN” input to the output of one of Pirelli’s “LANs”. Based on the laptop, I estimated that the “two-horned” signal was a little stronger. HIS WI-FI did not disappear, even when the neighbor’s WI-FI “ran over” his channel. I seemed to have solved the problem, I thought about turning off Pirelli’s WI-FI and using two routers. Then I tried to experiment some more with old Pirelli (I can’t find anything better at an affordable price for DSL). I remembered that if you just remove the Bluetooth speaker from the smartphone, when the sound starts to stutter, the radio transmission most often stops, and the smartphone pauses. This is because the smartphone not only transmits a signal via Bluetooth, but also “communicates” with the speaker. The connection is disrupted - the smartphone goes into a stupor.

I thought that using WI-FI I could try to facilitate communication between the router and smartphones and laptops. After all, it not only transmits a signal, but also encrypts it using WPA. I decided to temporarily disable encryption. And, lo and behold, the WI-FI stopped interrupting altogether!!! Then I turned on simple ancient WEP encryption - also perfect! Insider 1.2.8.0331 showed that all competing networks use WPA, WPA-2, WPA-T, etc. encryption. Now I only have WEP. The moral of this story is this. If I'm set to WEP, my router doesn't even try to read the neighbor's WPA-encrypted signal. There is interference, it produces noise, but my native signal level on smartphones and laptops is sufficient. Changing the encryption helped the router add selectivity and tune out powerful interference. Even when the powerful neighbor’s WI-FI “sits” on my channel and simply “breathes down my back.” That's how I understood it. Maybe it will be useful to someone. Specifically, weak encryption is not a problem for me. The signal of the “one-horned” Pirelli sharply weakens as we move away from our apartment. And if someone pushes himself and connects to my network, he will have DSL speed, and the desire to interfere will immediately disappear. :)))

01/24/2019 at 00:00 (4 weeks ago)

Interesting experience, thanks!
But I still wouldn’t recommend setting the security type to WEP. The problem is not only that it is not safe. There may be problems connecting new devices to the Wi-Fi network.

Gregory

01/24/2019 at 01:11 (4 weeks ago)

I have MODERN smartphones Xiaomi Redmi 6 32/16 GB (Android 8), or, instead of one of them, Windofon (Windows mobile 8.1/10) Nokia Lumia 535.0 (2014). To be fair, the TL-WR841N router, which initially works with WPA encryption, has two WI-FI: encrypted and open, for a maximum of 32 guests. I immediately turned off the open WI-FI there, so that with my DSL I would not lose the Internet, losing its speed (512-1024 KB/s) to the speed of the oldest old switching modem (56KB/s) connected to the telephone line, popularly called the “donkey” " I remember my donkey, I even kept two living specimens. :))) In short, the TL-WR841N router has the opportunity to test the refusal of encryption as a way to overcome powerful interference.

For my Pirelli, I left only one non-standard setting: instead of “b/g mixed” - “g only”. But this is not important at all, and does not save you from interference.