Wi-Fi internet through the router stopped working. The Wi-Fi network is often interrupted. What to do if a hardware error occurs. There is a WiFi connection, but the network works disgustingly, pages take a very long time to open

It is not uncommon for users to encounter the problem of lack of Internet after connecting to wireless point Wi-Fi access. Let's look at the main reasons why Wi-Fi does not work and solve problems that lead to network problems.

Important! As an example, the article uses images and parameter names TP-Link router TL-WR741ND. In your case, the names of the items are probably different. In this case, the algorithm of actions is common for all routers. The general reasons for network unavailability are considered, regardless of whether you want to connect to a Wi-Fi network from a laptop, computer or smartphone.

Problem 1: connection successful, but no internet

If the connection to the router is established, failures in the settings and other problems are excluded, there is probably no Internet. To clarify, you should disconnect the Internet cable and connect it to the computer directly. If there is no connection, you should contact your provider. If the Internet works when direct connection, then the problems are related to the router.

Problem 2: the Internet works when connected directly to the PC, but the Wi-Fi network is not available

To determine the nature of the problem, it is important to clarify under what circumstances the error occurred that led to the violation Wi-Fi work. Let's look at the most likely causes in this situation and solutions.

System failure

In the process of work, sometimes there are software errors. Usually this problem is solved by rebooting the router for 1-2 minutes. In rare cases, it is necessary to reset the router settings.

To reboot, press the on/off button or remove charging block from the network. To return the router parameters to the initial state, open the router settings menu or use an external switch.

New router, incorrect internet settings

When connecting a new router, you must initial setup, where you can set settings for Internet operation and activate Internet distribution via a wireless network. If the router previously worked properly, the settings may have gone wrong.

Open your router control panel and select settings WAN networks. Check the settings with the parameters offered by the provider.

Wireless network is not enabled

In the router settings, the “Wireless Mode Settings” item, you also need to activate the “Enable router wireless broadcasting” and “Enable SSID Broadcasting” parameters. Make sure the selected region is correct. Also check if the DHCP option is enabled.

Firmware has been changed or updated

After updating or changing the firmware, some parameters are lost. If the settings are correct, reset them if possible. previous version firmware.

Problem 3: Wi-Fi network works, but sometimes disconnects

Overheat

Regular operation of the router under load, with a weak or absent cooling system, leads to malfunctions. IN best case scenario, the data exchange speed will deteriorate. At worst, the device will turn off for a while until the temperature returns to normal.

Run the back of your hand along the body. If holding your hand is not comfortable, then the device overheats. Installing a PC case fan, for example, will reduce the temperature.

Network is overloaded

When downloading a large amount of information, for example via a torrent, other subscribers physically do not have enough traffic. The connection remains active, but it is not possible to use the Internet. In this case, you should limit the download speed.

If downloads are in this moment missing, check if there is third party connections. To do this, open the section “ Wireless mode", the item "Wireless network statistics", where connected devices are displayed.

Problem 4: Only a certain device does not connect to the network

If specific smartphone, tablet, laptop, etc. does not connect to the access point, there is probably a system failure that requires a reboot. You also need to enter the “Wireless Mode” section, then the “MAC Address Filtering in a Wireless Network” item, where you can check if the MAC address is blocked of this device. If so, the blocking must be disabled.

Problem 5: All settings are fine, but a certain device does not connect or does not see the network

Make sure that the connected device supports the router’s signal broadcast frequency – 2.4 and/or 5 GHz. Otherwise, the access point will not appear in the list of “available” for connection.

Also open “wireless network settings”, where change the channel or set automatic selection. Also set the operating mode to 11bgn to support devices with old Wi-Fi modules.

WiFi is unique technology wireless communication, which is incredibly popular all over the world. Nowadays there are very few people who prefer regular wired Internet. Connecting and setting up Wi-Fi is not difficult. But even in such a perfect system, sometimes errors occur due to which Wi-Fi stops working. The most common is a problem with connecting to the Wi-Fi router.

Some people are faced with a situation where the router is connected to the network and works, but does not distribute data: the computer cannot “see” available network. Why does this happen? There may be several reasons for this:

lack of installed network drivers;

hardware type errors;

random shutdown of the connection to the computer - it is obvious why in this case the device does not work as it should;

Wi-Fi module malfunction;

Wi-Fi router malfunction.

There are other problems, but the ones listed above are the most common reasons, for which the device does not work. Therefore, we will focus on them.

Problem with drivers for network devices

Driver testing WiFi module carried out in the "Device Manager". This section is located in the Start menu. You can also get to the section through the “My Computer” shortcut by right-clicking.

In the "Manager" you can see all the devices connected to the computer. We will be interested network hardware. You need to switch to the branch from network drivers. If the branch is missing, this means that the drivers for the wifi adapter were not installed on the computer.

If there is a branch, on one of network devices The “!” sign may light up. This means either the absence or malfunction of one of the drivers. Each of the problems is easily solved by simply reinstalling the software. Typically the software is located on the disk that came with your computer. wifi adapter for device manager it can be called Wireless Network Adapter You can also download everything you need from the Internet using mobile connection(unless otherwise available at the moment).

How to check your wireless connection status

If everything is fine with the drivers, then the next step is to check wireless connection. It can simply be turned off. Testing is carried out differently on different operating systems. But it all comes down to one thing: you need to get into the “Network Control Center”.

Exists universal method. You need to press Win+R, after which a window with a line will appear. In the line you need to type control command panel and press Enter. This will open the "Control Panel". Here we go to “Network and Internet”, then to “Network and Sharing Center” shared access" In the “Center” we will be interested in the “Change adapter settings” section located on the left. Clicking there will allow you to see the status of all connections that are available on the computer.

“Wireless connectivity” is what will be important to us. If the label is not colored but gray, it means there is no signal. You can start the connection double click left mouse button. After startup, the computer begins to search for all available connections.

If they do not appear, you can try system diagnostics. It is carried out through the “Network Center” and the “Change adapter settings” item. You must click on the “Wireless connection” shortcut right click mice. In the window that opens, click the “Diagnostics” field. The computer runs the test on its own. Based on the result of the check, the user receives advice on further actions.

What to do if a hardware error occurs

A hardware error would indicate a problem directly within the network card. In a word, if the computer does not see the adapter for connecting to Wi-Fi, this means that it is wifi device does not function. There are two main reasons:

the device is broken;

There was a problem with the wifi drivers.

The second option has already been described by us. However, if Wi-Fi drivers are available, but the computer continues to not see the adapter, this means a breakdown. One of the most common causes of failure is the device burning out.

The cause of combustion may be overheating if the computer for a long time works for maximum mode your capabilities.

If we are dealing with a laptop, then this happens even more often, since many users forget the device on a soft surface that blocks access to the hole through which air flows for cooling. This problem can be solved by simply replacing components with similar ones. It is worth keeping in mind that a lack of experience in independently manipulating computers can lead to even more detrimental consequences. This is especially true for laptops that have a more complex design. The best way out from the situation there will be an appeal to service center
, they will accurately determine the reason why the device does not work. Hardware connection errors also include a disconnected antenna. Most often this problem occurs in laptops or that have been cleaned or repaired in any way. The specialist performing the procedure could simply have forgotten to connect the device, or he connected it incorrectly. This makes it impossible for the adapter to function normally, as it does not work normally and cannot normally catch the signal distributed by the router, even if it is close to the source.

A rather rare case is the antenna terminals becoming clogged with dust. So it's broken internal contact. The solution to the problem is cleaning.

Why does the Wi-Fi router not distribute the Internet?

The connection problems described above relate to malfunctions in the computers themselves. But often there are problems that are related to the way the router works (or, more precisely, rather does not work) and does not distribute the Internet.

There are two main problems:

inability to establish a wireless connection;

lack of access when connected.

The listed failures can be easily resolved independently, without resorting to the services of specialists.

How to solve wireless connection problem

Testing how the router works begins by checking the status of the indicators that are located on external panel router. At normal functioning The LED next to the antenna pattern will be constantly lit or blinking. If there is no light at all, this means that the router is not running wireless module. On certain models exists separate button, which can be accidentally turned off by one of the family members.

The lack of a button makes solving the problem a little more difficult. You need to go to the “Wireless Network” section located in the router’s web interface. In the English menu this section is called “Wireless”. There is a checkmark next to the “Enable” box (in English – “Enable”). A click of the mouse can solve the problem.

It is possible that when the device does not distribute the Internet, the malfunction is related to the radio channel used. Most router models have a function automatic settings. If it is missing, you can try installing channel 1 or 6. They are the ones that should be suitable for our country.

It happens that it becomes impossible to connect to a wireless network, because the network displays a message about the incorrect password. It's worth checking the security settings in the web interface. Installed type encryption must be AES. The general security standard is WPA2-PSK.

How to solve the problem if there is no access when there is a connection

Quite often it happens that the connection begins to take place, but the process itself takes a long time. The status shows the message “Receiving IP”. After some time the connection is lost.

This means that network clients cannot obtain an address because the DHCP server is disabled. You can check this through the settings in local network. You will need the LAN section, where there should be a checkmark next to the DCHP parameter.

Access problems may arise due to incorrect operation DNS servers. Wrong purpose for them network clients or complete absence appointments, as well as unstable work servers - these are the three main reasons.

The solution to the elimination problem is as follows. Need to take advantage public DNS. They are provided by Yandex and Google. In the first case, you need to enter 77.88.8.8 in the settings, and for Google this value is 8.8.8.8. The data is entered on the computer in the Internet Protocol properties of any version of TCP/IP.

Conclusion

All of the above are troubles that you can get rid of yourself. In any other situations, it would be better to contact the provider’s technical support or professional technicians.

Android is the most used, multifunctional and powerful operating system on the basis of which unlimited amount quality, interesting and available applications. Due to its versatility and huge demand, it is successfully used for software for smartphones, tablets, netbooks, smart watches, smartbooks, and TVs. But, even with the most proven shells, small difficulties arise, from which even this system is not immune during use. Therefore, we will look at what to do when problems arise with Wi-Fi connection on your Android device. Today we will find the answer to the question, why doesn’t Wi-Fi turn on on Android?

Reasons and solution

Wi-Fi on your phone or Android tablet, may not work for several reasons. It should be noted that not only owners may encounter this tablet computers, but also people using Cell phones, based on this popular system. What should users do if it doesn’t turn on? wifi samsung device, we will look for the cause and eliminate the root of the problem.

One of the root causes if Wi-Fi stops working on Android, which is extremely rare, is that it’s incorrect set date and time. To eliminate it, just go to “Settings”, set correct date and time, taking into account the time zone.
The second and most common problem– change password when automatic connection to the network. That is, the password has been changed by the user, but Android system still “doesn’t know” about it. To fix this problem, using the interface or hotkeys, go to the Wi-Fi network connection settings, delete the profile with which the connection was previously established and create the connection again, select from the list available connections yours, enter the required characters in the window that appears. Further, connection to the password-protected network will occur automatically.
Software glitches ( Software) - the third of possible reasons when Wi-Fi on Android stops connecting. For this they use Wi-Fi utility Fixer, created specifically to solve this problem. Without making any changes in the program settings, I download and install this application. After installing the utility, information about the current status of the device will appear, and all devices that have ever been connected will be displayed in the “Known” tab. Then reboot the smartphone or computer tablet, we try to connect again.
The fourth problem, if Wi-Fi does not work on Android, is a failure in the settings. To bypass it, you can reset the settings to factory defaults, with further recovery. Go to “Settings”, select “Backup and reset”, click “Reset settings”. Or we do the full " Hard reset", but then all data is deleted, that is, the device will be the same as after purchase.

Sometimes users install inappropriate Android firmware, as a result of which it is violated correct work radio modules, including the wifi module on Samsung phones or tablets. The solution in this situation is to install or update basic firmware on Samsung.

These viruses again!

One of the most unpleasant reasons when Wi-Fi does not turn on is the influence of malware, the so-called virus programs, on the operation of the device’s radio modules. To eliminate viruses on your phone, you need to do deep scan built-in antivirus.

Setting up the router

The venerable seventh place is occupied by an error that pops up when connecting to Wi-Fi - a failure or incorrect setting router. Elimination of this error is carried out in the router settings. You can find out how to do this from the device instructions. This is especially true if used home network. In the control menu, select “Wireless Network Settings”. Change the parameter to “Auto” in the “Channel” line, and the “Mode” line to the parameter “11 bgn mixed”. We disable MAC address filtering to make sure that the router does not filter the addresses of connected devices. Let's try to connect.

And now it’s definitely time to go to the master

If none of the above methods helped, then the problem is in the radio module itself; wifi will not work until the chip is re-soldered. In this situation, the best solution, you will need to contact a service center (for example, Samsumg) or a competent and trusted computer technician under warranty.

It must be remembered that any intervention by incompetent persons in the operation of the system, even when solving the problem when Wi-Fi does not connect, creates a huge risk of turning your favorite gadget into a useless piece of plastic, the resuscitation of which will require significant financial costs and your nerves.

According to the unspoken tradition, I will leave a video instruction, perhaps it will help you restore wifi functionality on your Samsung tablet or phone.

Video instruction

Wi-Fi technology is very widely used in life modern man, because it allows you to easily and quickly solve problems with connecting to the Internet without using conventional wires. This is especially true when using laptops, which can be used to access the Internet in any convenient place thanks to the presence of a built-in Wi-Fi adapter.

That is why the situation when Wi-Fi does not work on a laptop leads to significant inconvenience and even some problems. The reasons why laptop computer Wi-Fi may not work, there are quite a few. It is simply unrealistic to solve the most serious of them on your own without the help of specialists, but there are quite a lot of them that can be eliminated on your own. Let's look at them.

Is the problem with your laptop or router?

A fairly common problem is that the laptop has stopped connecting to WiFi networks, the problem is not with the laptop itself, but with the settings of the router, which distributes the network. Thus, the laptop can be configured correctly, but Wi-Fi still does not turn on precisely because it has nothing to connect to.

To rule out the possibility that the problem is related to this, you should try to connect to the network from any other device that is equipped with a Wi-Fi adapter - from another laptop, smartphone, tablet, etc.

If Wi-Fi does not work from another gadget, then the problem lies in the Wi-Fi router distributing the Internet. If the connection is successful, the problem is in the laptop and before solving it, you first need to determine why Wi-Fi stopped working.

Hardware enable adapter

Based on such diagnostics, it is possible to accurately determine that this problem arose precisely because of the laptop. When Wi-Fi does not work on it, you can try using several methods.

The first one is to check if the wireless adapter on your laptop is enabled. Almost everything modern models have indicator lights WiFi work module and for it hardware enable There is special combinations keys

Typically, a lit indicator indicates that the module is turned on. If the indicator does not light up at all or lights up in red, then Wi-Fi is not working precisely because of the wireless network adapter. It must be turned on.

Most often, such indicators are located directly on the keyboard, side or front panel of the device case. Sometimes they are located on the monitor body or near the touchpad.

To enable the module of such a network, press the key combination Fn and one of the system keys F1-F12. The specific combination depends on the laptop manufacturer. Usually on the desired key the corresponding antenna icon is located. If it is not there, then to turn on Wi-Fi you should try pressing standard for specific model combination:
Fn+F3 for Acer;
Fn+F2 for Asus, Dell or Gigabyte;
Fn+F5 on Fujitsu devices;
Fn+F12 on HP laptops.

After pressing the corresponding keys, we check whether the wireless connection module operation indicator lights up or whether it stops glowing red. After this, you should try to connect to the network again. If this does not help, move on to the next step.

Software enablement

When Wi-Fi stops working and turning it on in hardware does not give positive results, you also need to turn it on in software, which is done directly from operating system, under which the laptop runs.

To implement software turning on WiFi that has stopped working on Windows 7, 8 or 10, you need to perform the following sequence of actions:

1. On the notification panel, which is located near the clock, select the network connection status icon;

2. From the list that opens, select “Network and Sharing Center” or “ Network settings» depending on the operating system version;

3. Next step- "Change adapter settings".

Among the list of all existing connections you need to pay attention to the color of the “Wireless” icon network connection" If your WiFi does not work and wireless adapter is disabled, the connection icon will not be highlighted. In this case, right-click on its icon and select “Enable” from the context menu that opens. The color of the connection icon should change.

In this case, the wireless network adapter turns on, all you have to do is find the one you need in the list of available wireless networks and connect to it.

If after such Wi-Fi action which has stopped working continues to be inactive, you need to move on to the next method of solving the problem.

Driver installation and update

Quite often, the wireless Wi-Fi connection does not turn on due to the lack of a driver or when it is very outdated. To determine availability installed driver, you need to select “Properties” from the context menu of the “My Computer” icon, which is located on the desktop or in the “Start” menu. Next, in the window that opens, select the “Device Manager” command from the menu on the left.

In the new window that opens with a list of connected devices, you need to find the name of the laptop’s wireless network adapter. Usually its name is “Wireless Network Adapter” or “Wireless Network Adapter”, along with which the device manufacturer should be indicated: Realtek, Atheros, Qualcomm or something else.

Having found the desired item and right-clicking on it, select “Properties” from the context menu. In the window that opens, there should be an item “Device is working normally.” But even if there is a mark about normal operation device, this is far from a guarantee that it is installed correct version drivers and Wi-Fi turn on correctly. To check it, in the properties window wireless device go to the “Driver” tab and pay attention to the “Development date” and “Supplier” items.

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

The same must be done if among the list installed devices There was no wireless adapter.

If the wireless module is present in the list of devices, but is marked in yellow exclamation point, this means that the device is disconnected, as a result of which the network stopped working. In this case, opening the device properties window, you need to click the “Engage” button.

Another reason why Wi-Fi stopped working on a laptop may be that the energy-saving mode is enabled, which prevents the wireless connection from working. To disable it, you need to do the following:
1. Open Control Panel;
2. Select the “Power Options” icon;

3. In the window that opens, select the “ High performance" or "Balanced".

External obstacles to the signal

It's also worth noting that a broken wireless network can also be the result of more than just laptop problems. The wireless signal depends on some external factors which may weaken it. Ceilings, walls, floors and similar obstacles significantly degrade the signal quality of the access point and laptop.

As is known, the signal quality is personal computer is displayed in the form of several marks - the more there are, the higher the quality of the signal. If the wireless connection level is displayed as 1 or 2 marks, then you don’t have to try to use WiFi - in this case it will not work normally.

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

If all else fails

If none of the tips above helped, you can use a simple, but often effective solution: restart both the computer and wireless router. Please note that after a reboot, the router turns on for up to 5-10 minutes before it starts distributing the network. Be patient. Also, despite the opinion of many skeptics, sometimes the problem diagnostic function found in the Windows operating system helps solve problems with a wireless network.

Thus, most of the above have been listed existing solutions problems related to the fact that Wi-Fi stopped working on the laptop. Almost all such methods and recommendations can be used by anyone who is faced with similar problem, since this does not require any special skills.
If nothing helps, and the wireless network does not start working, there is only one option left - go for help to a quality service center, where they can solve any problems with the laptop.

If the article did not help solve your problem and Wi-Fi still does not work, write in the comments, I will try to help.

Not working wi-fi - this phenomenon is quite common, and most often occurs if any changes are made: after reinstalling the OS, updating firmware, replacing the router, and others. Sometimes finding the cause of Internet problems is difficult even for experienced professionals.

Wi-Fi does not work on a laptop, what is the reason?

The reasons for the inability to connect to Wi-Fi can be very different; they can be divided into simple and complex. And in this article we will try to consider the main ones.

Banal (simple) reasons for Wi-Fi not working

You haven't paid for the Internet - pay for it.
The router is not turned on - turn it on.
No Wi-Fi coverage— move closer to the router.
Your router is buggy - reboot it.

Serious reasons for Wi-Fi not working

If you have a problem connecting to Wi-Fi, then first you need to determine what the reason is: in the router or in the laptop.

The easiest way to find out what the problem is is to connect another device to your router or connect your laptop to a different Wi-Fi network.

Wi-Fi router/router is not configured

Before connecting to a wireless network, you need to configure your router. If you have not done this, then you should find instructions on the Internet for the router of your model and for your specific provider.

To find out if the connection from the provider is working, you need to check the WAN tab in the admin panel or the indicator on the router. If the connection from the provider does not work, then the problem may be as follows:

The admin panel contains incorrect settings for connecting to the provider.
The router is faulty.
Problems on the part of the provider. To exclude or confirm this option, you can contact your provider.

Wi-Fi does not work on a laptop - the receiver is faulty (burned out)

Sometimes Wi-fi laptop it just stops working. The network connection is either missing or unstable. The cause may be a breakdown Wi-fi module in the laptop. Then it may need to be replaced or repaired.

Most probable cause The fact that the laptop does not connect to the Internet after reinstalling the operating system is the inability of your new operating system to find and install a driver suitable for your network card.

As a rule, to install a driver on a network adapter, you need to use the driver disk that comes with your laptop, or you can also download required driver from the manufacturer's website for the specific model of your device.

You can check whether a driver is installed on the network adapter in Device Manager.

Wi-Fi module is not enabled on your laptop

There are 2 ways to enable the Wi-Fi adapter programmatically if it was previously disabled in the OS settings:

1. Through the Network and Sharing Center. You need to enter the command ncpa.cpl in the input window after pressing the Win+R combination. This command will open “Change adapter settings”, from there you need to go to “Wireless network connection”. If icon network adapter gray, then you need to turn it on.
2. Through the device manager. If the adapter is disabled in Device Manager, the “Wireless Network Connection” icon will not appear in Network connections. Then, as in point 1, you need to press Win + R. Then you need to enter the command devmgmt.msc, it will open the device manager. Next, we find a device that contains in its Wi-Fi name or Wireless, and after right-clicking, you need to click “Engage”. If the adapter does not turn on, then you need to check if there are suitable drivers.

Firewall or antivirus is blocking internet access

Sometimes your OS's security features, such as antivirus or firewall, can prevent your laptop from connecting to Wi-Fi.

If the problem is the firewall, then solving the problem is not difficult: you just need to disable it in the system settings.
If the obstacles are caused by the antivirus, then you need to either end the task through the task manager required processes, or you can disable the antivirus itself.

Viruses and Malware block Wi-Fi

If you do not have an antivirus installed or it is outdated, then there is a high probability that you will encounter a blocker virus. Such viruses block your access to the Internet, allegedly due to a violation of the law. This virus works very simply: it sets its DNS servers in the network settings, and your browser finds only the fraudulent site. To solve the problem, you just need to change the DNS servers to those that suit you.

There may be too many devices connected to your Wi-Fi. Look and turn off the most active ones who are clogging up the Internet channel.

Many factors affect Wi-Fi speed. They are treated as external problems, so the problem may be in the device.

The most common reasons:

Laptop network adapter and Wi-Fi router have different capabilities.
An unauthorized connection has occurred to your router.
The influence of electrical appliances.
Incorrect router location.
On wireless channel influenced by another router.
The equipment is outdated.

Advice: To make your Wi-Fi work faster, try rebooting the router, moving it to another location, or updating its firmware.

If before Windows reinstallation Wi-Fi on the laptop worked properly - then the reason could only be in the drivers. Right-click on the “My Computer” icon, go to the “Hardware” tab, then click on the “Device Manager” button. In the list that appears, icons with an exclamation mark indicate those devices for which the driver is not installed.

Find out your model motherboard(if you have desktop computer) or the model of your laptop (you can look under the battery). Then go to the manufacturer's website and download drivers for your network card. After installing them, Wi-Fi will appear on your computer again.

The wifi button does not work on a lenovo/HP/asus/acer laptop - how to fix it?

Fix not work button You can only replace the entire laptop keyboard; order a keyboard from your laptop and replace the old one with a new one yourself or take your laptop to a service center.

Important! While the button does not work, you can turn on Wi-Fi on your laptop without a button, using OS Windows. To do this, click: “Start” - “Control Panel” - “Network and Internet” - “Network and Sharing Center”. On the left, click on the item: “Change adapter settings.” Next we are looking for wireless network, right-click on it and select ENABLE.

What to do if the wifi driver on the laptop does not work?

In this state of affairs, we have no options, we either need to update old driver, or remove the existing driver and install a new one.

To delete current driver from your Wi-Fi - right-click on the “My Computer” icon, go to the “Hardware” tab, then click on the “Device Manager” button. Next on the list we are looking for yours network card and remove all network equipment, then reboot the computer and install new driver for Wi-Fi.

There may also be cases when your wifi adapter(network card) there are no new drivers for modern operating systems, in which case you need to return the previous operating system.