The laptop doesn't see it. Problems connecting to Wi-Fi on a netbook: what to do. Driver installation and update

Owners of laptop computers often encounter the fact that the laptop does not see the WiFi router. This is a rather serious and annoying problem that baffles many, even experienced users. What could cause a laptop not to see the WiFi router?

There may be several reasons for this phenomenon, and each of them requires separate careful consideration. This problem can affect not only users of portable machines such as laptops and netbooks, but also owners of classic stationary systems with a WiFi receiver. Therefore, the solution to such a popular problem will be relevant and useful to know for almost everyone who at least sometimes deals with computers or WiFi.

Connection problems - looking for the culprit

One of the most common obstacles that prevent a laptop from seeing a WiFi router is the unsuccessful launch of the WiFi module on it. It may even happen that the search for available networks is turned on, all points are within range, but as soon as you try to join, the system displays a connection error. These and similar complications most often arise on computers with Windows 7; it is this system that is most likely to create problems with connecting to WiFi.

Figure 1. Checking driver installation on WI-FI. First you need to check whether the driver is installed on Wi-Fi.

In addition to the computer's fault, one should not exclude the possibility of a faulty access point, i.e. router. Therefore, the first step is to determine what exactly caused the problem, who is the culprit - the computer or the router? A simple and effective way to determine this is as follows:

Find a second computer and try to connect to the access point from it.
From the suspected computer, try connecting to various other points.

This should determine which device is actually causing the problem.

If one computer does not see the router, but other computers and mobile devices connect to it freely, then the problem is in this computer. Otherwise, if other devices are unable to connect to the router, and other access points do not cause any problems, you will still have to deal with the router.

Checking the drivers

In the case when WiFi does not connect due to the fault of the computer, the first thing to do is check whether the WiFi module is running and whether all drivers are installed on it.

To check the adapter, you need to go to Network Connections through the Control Panel and turn on the adapter.

To do this, open the Device Manager (Computer - Properties - Device Manager), look for and open the “Network adapters” subsection.

We check whether there is a device there whose name contains the words “Wireless Network Adapter”, or “Wireless”, or simply “Wi-Fi”. You need to go to “properties” and see if it works fine. (FIG. 1)

If such a device is missing or does not work correctly, or there are unidentified devices, you need to reinstall their drivers. To do this, we find the website of the manufacturer of the laptop model, look for a suitable Wireless Network Adapter driver on it, download it and install it.

Incorrect automatic detection of drivers by the system, or outdated drivers are a common case that can prevent the correct operation of the wireless adapter.

Checking the operation of the adapter

You should definitely check if the wireless adapter is turned on on your laptop. As a rule, it is enabled/disabled by pressing a key combination, for example FN + F2. To make sure which buttons you need to press, find the key with the wireless network icon and press it at the same time as the FN key, or refer to the user manual for your laptop model. Some laptops have a separate switch to turn WiFi on/off.

Another way to check whether WiFi is enabled or not is through a network management program. From the Control Panel, go to the Network and Sharing Center, then select “Change adapter settings” on the left. The Network Adapters and Connections window will open, in which you need to find “Wireless Network Connection”. Right-click on the connection icon. If there is an “Enable” item in the context menu that opens and the connection icon looks gray, click on “Enable”, the adapter should start.

Otherwise, if the icon is colored and there is a “Disable” item in the menu, it is recommended to restart the adapter, i.e. Click on “Disable”, wait a few seconds for the module to turn off, and then turn it on again. The connection icon in the notification area should look like the one in the screenshot. This means that the adapter is turned on and access points have been found. If a similar icon appears, but instead of a yellow asterisk a red cross is shown, it means that the module is running, but no connection points were found.

It is also quite common for the computer to find available WiFi points, but not connect to them; instead, trying to connect causes the error “Windows could not connect.” But at present, there is no universal and unambiguous fix for this error. Quite often, the cause is incorrect router settings, such as incorrect security and encryption settings, or problems with IP address allocation.

One of the possible methods, which helps in many situations, is to reboot the router and computer. In some cases, clicking the "Troubleshooting" link in the error message box can help you fix the error. Another tip: go to the properties of the wireless adapter and disable it to save energy, because... the reason may be that the computer does not properly manage the power to the WiFi module.

Quite often, a connection loss occurs after the laptop exits sleep or standby mode. This problem appears mainly on Windows 7 and Windows 8 systems. In this case, the measure described above also helps, i.e. Prohibition of turning off the adapter to save energy. To do this, go to Device Manager, in the network devices subsection we find the wireless adapter, go to its properties through the context menu. In the properties window, you need to go to the “Power Management” tab and there uncheck the “Allow the device to turn off” option. Click OK and reboot the system.

A connection error will inevitably appear if the password and encryption type for automatic connection were saved in the properties of the WiFi connection on the laptop, and one or both of these parameters were changed on the router. In this case, the system will try to connect to the router with the old parameters, and it, accordingly, will not accept them and refuse the connection. The solution to the problem is to delete the network with the old parameters and connect using the new ones.

Checking the router configuration

You can enter the router settings through Network Connections, where we select the “Network and Sharing Center” item, then, if necessary, change the router settings.

In the same case, when the router is at fault and rebooting does not help, there are several ways to fix the problem:

Do not use automatic channel detection, set it manually, check different channels.
Change the type, frequency and region of the network.
Do not use Cyrillic characters in the password and SSID name.

Getting into the router settings is not difficult; to do this you need to follow a few simple steps. First of all, the router must be connected to the computer with a network cable. It is possible to connect via a wireless network, but it is not as reliable and secure as directly via cable. Then we open any Internet browser, enter the IP of the router into the address bar, usually it is 192.168.0.1 or 192.168.1.1, more precisely you can find it in the instructions for the router or read it directly on the sticker on its case. By entering the router address, we get to its web interface.

To gain access you must enter a name and password, usually they are the same: admin. Sometimes they may differ, this should be indicated in the same place as the address - in the instructions or on a sticker. Once in the settings, you must first try to set them in accordance with modern standards:

security type WPA/WPA2;
WPA2-PSK version;
automatic encryption;
region of the USA or the Russian Federation.

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It is recommended to change the WiFi hotspot name and password. Don't use Cyrillic, check your keyboard layout! Only names and passwords in Latin work correctly; numbers can be used. When you finish changing the settings, you should reboot the router. After this, the new settings will take effect, you can delete the old saved connection on the laptop and all other devices that previously connected to the router, and try to connect again.

As already mentioned, if after changing the password, type of protection or encryption, you do not delete the old one and create a new connection on the computer, the computer may refuse to connect to WiFi, displaying an error. To complete this procedure, you need to go to the Network and Sharing Center; this can be done from the Control Panel or through the network icon in the notification area. Having entered it, we find and click the “Manage wireless networks” link. Once there, select the network of the router on which the parameters were changed, right-click on it and select “Delete network” in the context menu.

Unfortunately, many of us have encountered a problem when the laptop stops finding a wireless network, which creates significant inconvenience. Considering that the laptop can be used outside the home, the user may be left without the Internet at all. There can be many reasons for this little pleasant moment. But, as a rule, the problem is technical, or in the incorrect operation of the software. To understand how to deal with the problem, let's look at it in more detail.

In order to understand the causes of the problem and understand why the laptop does not find the WiFi router or home WiFi network, you need to know what WiFi is and understand how this wireless communication system works.

WiFi is the same as a local network, only without the need to lay a cable. Connection to the network occurs through a signal that is transmitted via radio waves. This system gained popularity not so long ago. A dozen years ago, no one knew about it, and the signal distance was much shorter. To be precise, the signal can be sent over a distance of 100 km.

In addition, WiFi is a registered brand that is developing very actively. In 2014, data transfer speeds via WiFi should increase to several Gbit/s.

To put it simply, this method of connecting to the network is now very popular. Almost every laptop has a built-in sensor that allows you to use a wireless network. At bus stops, in cafes or any other public places, owners install free access points, which increases the level of comfort of the establishment or public place.

The main reasons for the lack of WiFi

As mentioned above, the main reasons can be divided into technical and software. In the case of technical ones, the owner of a laptop will most likely have to contact a service center and spend money on repairing it. At best, figure out the reason for the poor performance of the router.

Availability of WiFi on laptop and router

It’s worth starting with the very basics, which can be forgotten due to haste or inattention.

Make sure that the receiving antenna is turned on. If the WiFi button does not work, then the problem is obvious. Not all laptop models have this switch, but some do have it. Most often it looks not like a button, but like a latch. However, it depends on the manufacturer. The switch may have a signature or image of an antenna, which indicates WiFi.

If there is no such button on your laptop model, then you need to pay attention to the bottom panel of the operating system, to the icon next to the time. The image should show whether the wireless connection is currently active.

It is possible that this icon on the panel next to the time is not there.

To check activity without using this icon, you need to:

Checking available networks

The next thing to do is check the available networks. Perhaps the router simply does not reach the laptop’s antenna and for this reason it is impossible to connect to the network.

To do this you need:

Click on the network icon in the lower right corner, on the bottom panel, next to the time.
Select “Connect to a network” and select the desired access point. Most likely, there will be more than one access point, since you can see neighbors or some other routers. But, in most cases, a password is placed on the access point, thus protecting it from unauthorized users.

Video: What to do if your ASUS laptop cannot find Wi-Fi

The laptop does not see the WiFi network: the main reasons

Why doesn't my laptop see the WiFi network? Perhaps the solution to the problem is right in front of you and only takes five seconds of your time. But there are also more severe cases. Let's look at the most common options.

Router

It is worth making sure that the router is turned on. Its operation can be easily determined by indicator lights. After connecting, look at the corresponding icons in the instructions for the router and determine whether the wireless connection is active.

If the router does not respond at all, then the problem is purely technical. In this situation, you should look for a problem in the wires, power supply, or take the router for repair. As a rule, it is easier to replace the router with a new one than to send it to service centers for inspection.

Drivers

As you know, any equipment requires software that guarantees stable operation. If the laptop does not detect WiFi, then you should check the drivers. Even if they are installed, it is recommended to update them.

Checking drivers can be done through the control panel. In the “device manager” section there is a line “network adapters”, which should contain the name of the router if the problem is with the drivers. Right-click on it and look at the driver version. Compare it with the real version, which can be found on the Internet.

If the version is outdated, then download a new one and install. It is best to download from official sources. Drivers for hardware are distributed by developers free of charge, and there is no point in risking the “health” of your operating system in vain.

Signal distance

If after searching for a network the answer appears: “No connections available,” think about the signal. In apartments, this option is not very relevant, since modern routers have a strong signal and distribute it quite far. But in private homes or other places where the distance can be quite large, the signal simply may not reach the laptop. Therefore, you should not be surprised if the Internet suddenly disappeared while you were walking around the house or yard.

Mac address

There are situations when I was able to connect, but the router does not see the Internet through my WiFi or has stopped seeing it. When using services from some providers, the user cannot simply change the network adapter, since the Mac address changes.

The Mac address is written on each router and the user just needs to call the operator to bind a new address to replace the old one. You may be asked to dictate it in full or to specify only the last few values of the entire number.

Antivirus or third party programs

Third-party programs installed on a laptop may conflict with drivers or interfere with the correct establishment of an Internet connection, which often happens when the device sees wifi but does not connect. In addition, sometimes antiviruses interfere with creating a connection. If possible, it is better to try connecting to the Internet without a router first. If everything is fine, then the programs are not to blame.

In addition to those listed, there can be many reasons. Basically, the variety of reasons is due to problems with the operating system. Therefore, if all else fails, try reinstalling your operating system. Perhaps all the problems come from here.

The laptop does not see the WIFI network on Windows7/Windows 8/WindowsXP

For those who are wondering why the laptop does not see wifi in Windows 7, first of all, you need to try manually turning on the wireless network.

To do this you need:

In Windows 8, activity is checked through the “PC Settings” item. Next, you need to select the “wireless connection” line and move the slider on the right side of the menu to the “On” state.

The wireless network when using Windows XP does not require manual activation and, as a rule, connects like Windows 7. It is enough to activate it through the control panel or through the wireless icon through the bottom panel of the system.

Video: how to create and configure a WI-FI network

How to set up a wireless network

For comfortable use of the network, some users resort to settings. Usually, standard settings are enough, but if you want, you can delve into your personal account. It is through your personal account that parameters are changed.

The login and password are specified by the router manufacturers, and you can find this data in the instructions. The address that will take you to your personal account is also indicated there. It is best to replace the default data so that no one can use it.

All other settings are made on the laptop itself, and they are installed using the Network Control Center.

WiFi without internet due to Windows

There are rare cases when the operating system itself does not want to detect a wireless connection and shows that there is no external network at all. This option may exist when using non-licensed OS. Some people prefer to use amateur assemblies, which do not load the system as much and allow you to squeeze more out of the hardware.

Another reason could be a clogged system. System folders, over time, become clogged with unnecessary files, and if defragmentation is not carried out, the processor will be increasingly overloaded. Antiviruses also cannot keep a laptop clean forever.

In any case, all problems with the OS can be solved by a simple reinstallation. After reinstalling Windows everything should work. Thus, the solution to the problem lies only in the functionality of the router, enabled WiFi on the laptop, or the presence of the necessary software. If these points are observed, WiFi will not present difficulties and will delight the user with stable operation.

Today, portable devices are gaining more and more popularity compared to personal computers, and there are a number of reasons for this. Modern laptops, tablets and phones are not just compact in size. They communicate with the Internet via Wi-Fi, and this is important, because Wi-Fi networks are quite widespread today. It is available in cafes, restaurants, libraries, train stations and even in public transport. All this thanks to the Wi-Fi module found in portable devices. However, sometimes such wireless communication does not work entirely correctly.

A little about Wi-Fi coverage

The Wi-Fi network is wireless and based on IEEE-802.11. Today, data transfer speeds through this network can reach 600 Mb/s. Wi-Fi coverage has a number of positive aspects, namely:

To connect to a phone, laptop or tablet, you don't need a cable at all. Thus, the amount of cash costs is reduced.
The owner of a phone, tablet or any other portable device is not limited to a specific place. The Internet can be used anywhere the user desires.
Wi-Fi coverage can be used without problems by owners of phones, tablets and smartphones.
Despite the fact that there is only one Wi-Fi network in the room, many users with a phone or tablet can simultaneously connect to it.

Reasons for Wi-Fi connection failures

The reason such as the portable device being too far from the connection point, that is, the router, is not worth mentioning. The main thing is to maintain the required distance. However, if a laptop, phone or tablet is located a few meters from the wireless router and there is no connection, then there are several reasons for this. So here are the reasons:

Older laptop models have a special small button to turn on/off the Wi-Fi connection. Therefore, it is worth checking that the connection is simply turned on. In new models, you can use a key combination, for example, Fn and F2, to enable Wi-Fi access. The device documentation will provide further assistance.

The next reason is damage to the drivers that ensure high-quality operation of the Wi-Fi module. The problem is easily solved by reinstalling the drivers, which can be downloaded using the manufacturer's official website. Other sites may offer low-quality products.
Sometimes the adapter module does not work at all. This is caused by the lack of a special utility that allows you to manage your wireless network. The utility can be found on the manufacturer’s website or installed from the disk included with the laptop.
Sometimes the Wi-Fi connection is completely unavailable. This refers to cases when all devices recognize the network, but one of the devices does not. In this situation, you first need to turn off the router for 10-30 seconds and then turn it on again. Sometimes the problem occurs due to an unexpected failure in the router settings. All you need to do is configure it again. In this situation, the best assistance will be provided by the provider’s support service, because each provider has its own type of settings.
It also happens that the signal is almost imperceptible and is characterized by a low level. At the same time, some devices recognize the Wi-Fi connection, but connection is still impossible. This situation may arise if the router is located quite far from the laptop, phone or tablet.

Theoretically, the cause could be a breakdown of the Wi-Fi module in a laptop or some other device. Moreover, if the warranty is still valid, you can easily exchange the purchased product. If you have an old device, repairs can be very expensive. Therefore, many advise purchasing an external Wi-Fi adapter, which is quite affordable.

So, it is important to remember that it is not enough to just purchase a router, connect the appropriate cable to it and connect to the Wi-Fi network. Setting is required, which is best left to a specialist.

In addition, WiFi is a registered brand that is developing very actively. In 2014, data transfer speeds via WiFi should increase to several Gbit/s.

Availability of WiFi on laptop and router

It’s worth starting with the very basics, which can be forgotten due to haste or inattention.

It is possible that this icon on the panel next to the time is not there.

To check activity without using this icon, you need to:

Checking available networks

The next thing to do is check the available networks. Perhaps the router simply does not reach the laptop’s antenna and for this reason it is impossible to connect to the network.

To do this you need:

Click on the network icon in the lower right corner, on the bottom panel, next to the time.
Select “Connect to a network” and select the desired access point. Most likely, there will be more than one access point, since you can see neighbors or some other routers. But, in most cases, a password is placed on the access point, thus protecting it from unauthorized users.

Video: What to do if your ASUS laptop cannot find Wi-Fi

The laptop does not see the WiFi network: the main reasons

Router

Drivers

Checking drivers can be done through the control panel. In the “device manager” section there is a line “network adapters”, which should contain the name of the router if the problem is with the drivers. Right-click on it and look at the driver version. Compare it with the real version, which can be found on the Internet.

Signal distance

If, after searching for a network, the answer appears: “No connections available,” think about the signal. In apartments, this option is not very relevant, since modern routers have a strong signal and distribute it quite far. But in private homes or other places where the distance can be quite large, the signal simply may not reach the laptop. Therefore, you should not be surprised if the Internet suddenly disappeared while you were walking around the house or yard.

Mac address

Antivirus or third party programs

The laptop does not see the WIFI network on windows7/windows 8/windowsXP

For those who are wondering why the laptop does not see wifi in Windows 7, first of all, you need to try manually turning on the wireless network.

To do this you need:

In Windows 8 OS, activity is checked through the “PC Settings” item. Next, you need to select the “wireless connection” line and move the slider on the right side of the menu to the “On” state.

The wireless network when using Windows XP does not require manual activation and, as a rule, connects just like Windows 7. It is enough to activate it through the control panel or through the wireless icon through the bottom panel of the system.

Video: how to create and configure a WI-FI network

How to set up a wireless network

All other settings are made on the laptop itself, and they are installed using the Network Control Center.

WiFi without internet due to windows

Another reason could be a clogged system. System folders, over time, become clogged with unnecessary files, and if defragmentation is not carried out, the processor will be increasingly overloaded. Antiviruses also cannot keep a laptop clean forever.

In any case, all problems with the OS can be solved by a simple reinstallation. After reinstalling windows everything should work. Thus, the solution to the problem lies only in the functionality of the router, enabled WiFi on the laptop, or the presence of the necessary software. If these points are observed, WiFi will not present difficulties and will delight the user with stable operation.

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The computer does not see the Wi-Fi network

WiFi wireless technology is widely used all over the world. Everyone knows about it, and there are practically no people left who do not use it. Connecting to an access point is extremely simple and does not require any knowledge. However, everything is not always so smooth. Quite often there are cases when the computer does not see available WiFi connections.

But before moving directly to troubleshooting, you should delve a little deeper into the principle of operation of this technology. The fact is that to connect to a WiFi network you need a router that acts as an access point. This means that if there is no signal, the access point should be checked first.

Why doesn't my computer see available WiFi networks?

If the router is turned on and working, but the computer still does not see the Wi-Fi network, then you should go to the system settings. There can be many reasons for such an error:

Drivers for network equipment are not installed.
Hardware error.
Wireless network connection is turned off.
Faulty WiFi module.

Besides this, there are other problems. However, it is simply impossible to describe everything. Therefore, we will look at the most common connection problems.

Checking the driver for network equipment

What to do if the computer does not see the WiFi network?

The first thing you should pay attention to is the driver. This is special software that controls the operation of this or that equipment. Thus, if the driver for the network adapter is missing or does not work correctly, then the WiFi module itself will not be able to work normally.

You can check this in Device Manager. Click on the “My Computer” shortcut (you can find it in the file manager or in the “Start” menu) with the right mouse button and select “Properties”. In the window that appears, in the left menu you need to find and open the “Device Manager” item. Here we see all the devices that are connected to the laptop. Among them you need to find network equipment. Read how to properly configure a wireless WiFi adapter here.

Open the branch with network adapters. The absence of such a branch indicates that the drivers for the WiFi adapter are not installed on the computer at all. If the device manager displays network devices, then you should check to see if the exclamation mark is on any of them. If such an icon is present, this also indicates the absence or malfunction of the driver.

In any case, this can be solved by simply reinstalling the software, which can be downloaded from the manufacturer’s official website. Or, if a disk was included with the laptop, then everything you need can be installed from it. The WiFi adapter in Device Manager is usually called Wireless Network Adapter. The driver is the main reason why the computer does not see the wireless WiFi network. If the drivers are in order, but the problem is not resolved, then move on.

How to reinstall the WiFi driver on a laptop: Video

Checking the wireless connection status

The next reason why the computer does not see WiFi wireless networks is that the connection is turned off. How can I check this? First you need to open the Network Control Center. This is done differently on different operating systems. For example, on Windows8, you can simply right-click on the network icon in the tray and select “Network Center”.

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You can also open the service as follows. Press the Win+R key combination and in the window that appears, write control panel. Press "Enter". Thus, we launched the control panel. Now we follow this path - Network and Internet Network and Sharing Management Center. It is worth noting that this option for starting the service is suitable for all versions of Windows. In the window that appears, we are interested in the “Change adapter settings” item. It's in the left menu.

In the window that appears, we see all the connections available on the computer. Find “Wireless network” (if you are using windows7, then “Wireless network connection”). If the label is gray, it indicates that the connection is disabled. To enable it, right-click on it and select “Enable”.

After this, the system will turn on the connection and begin searching for available networks. In some cases, if the computer still does not see the Wi-Fi network, then after this procedure you will need to enable the module on the keyboard using the Fn + adapter power button combination.

Performing diagnostics

If you have completed all of the above options, but the computer still does not see the Wi-Fi network, then you can resort to system diagnostics. To do this, open the Network Control Center and go to the “Change adapter settings” item.

Here we find the wireless connection shortcut and right-click on it. In the window that appears, you need to select “Diagnostics”. After this, the computer will independently begin troubleshooting and troubleshooting. After that, it will display a message about detecting problems (if any) or tell you what to do next.

What to do if the laptop does not see the Wi-Fi network: Video

Hardware error

What does a hardware error mean? These are problems directly with the board (network card) itself. In other words, if the computer does not see the wireless WiFi adapter, then this indicates that it is not working. This can happen for two reasons:

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

What to do if the laptop does not see the Wi-Fi network

What to do if a laptop with Windows 7 does not see Wi-Fi

Can't see network adapter on Windows 7

Windows XP does not see Wi-Fi

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The laptop does not see the wifi network: what to do? | Your networker

The problem of incorrect display or complete absence of available wifi networks occurs quite often and affects not only laptops, but also desktop computers, tablets, smartphones, etc.

There are many possible reasons why the Internet on a laptop via wif does not work well. In order to choose the right solution to this problem, you need to evaluate which “scenario” your situation belongs to: the laptop has stopped seeing wifi networks altogether (i.e., completely “ignoring” wireless connections) or the laptop does not see wifi from any one point access, easily identifying other Wi-Fi signal sources.

Why doesn't wifi work on my laptop?

First, it’s worth looking at the most common scenario - the computer completely “ignoring” all wireless networks. Those. Are you sure that:

- the router sends out a signal normally and the access point is “open” for connection;
- there are other available wifi networks nearby;
- other devices (for example, a cell phone) can easily identify active sources of a wireless signal.

But at the same time, your laptop does not find any wifi network and does not connect to the Internet - i.e. Wi-Fi on the laptop stopped working altogether.

1. To solve this problem, first of all, you should check whether the “wireless network adapter” is turned on at all. For this:

- open “Device Manager”, in the “device tree” select “Network adapters”;
- the list that opens should contain your wireless network adapter (the name of which depends on the device model and you can find out more about this parameter in the documentation for the laptop);

- there should not be a triangular yellow icon with an exclamation mark next to the name of the adapter - it means that the wireless network adapter is disabled, or the network driver installed and used by the laptop is not working correctly;
- to turn on the Wi-Fi adapter on your laptop, right-click on it and click “Enable/Connect”;
- if the driver does not work correctly, download and install the current version of the program for your laptop. Or remove the device through the “Device Manager” (download the required driver first - to be on the safe side) and restart the PC - the adapter should appear automatically.

In addition, you can check the adapter through the “Control Panel” - “Network and Sharing Center”: if the adapter is enabled, then there should be a section either “Wireless network adapter” or “Wireless adapter”.

2. Perhaps the laptop does not see Wi-Fi due to the fact that the network is disabled by a key combination or a special switch on the case: this reason is most relevant for laptop owners.

It is worth paying attention to the key combination “FN+F2”/ “FN+F3”/ “FN+F9”/ “FN+F12” (depending on the laptop model) - this combination enables/disables the network and is intended mainly for those who frequently travels by air (accordingly, this mode is called “On a plane” - most modern smartphones and tablets have a similar function).

3. If the laptop stopped seeing wifi after the device was disassembled (to clean the upgrade from dust), then perhaps the wireless module was physically disconnected during disassembly or the integrity of the connection wires was damaged. In this case, the solution to the problem will be to connect the adapter (and in case of a physical malfunction, replace it with a working module).

Why doesn't the laptop see wifi, but other devices see the router?

Now let’s consider a situation where the laptop selectively does not see the “wifi” network. It is worth noting that most problems with wireless networks can be resolved by updating network drivers.

So, there is a certain network that works and is displayed on other devices, but the laptop with great stubbornness does not want to see it. You can do the following:

First of all, try changing the encryption method in the wifi security settings

and experiment with the “Channel” parameter;

Try changing the name of the network - try to avoid complex symbols in the name.

Also, the reason that the laptop does not see the wifi network on Windows 7/Windows 10 may be that the computer is infected with viruses and problems with the hardware.

This applies directly to the computer, but the culprit that the laptop does not see the Wi-Fi router may be the source of the wireless signal itself.

- check the relevance of the installed firmware on the router: if the firmware is out of date, then update it to the most recent version;
- reset the router configuration to its default value (factory settings) and reconfigure the router;
- in some cases, installing an older version of the firmware helps, setting up the network configuration and then updating the firmware.

Thus, the most relevant and effective solution to the problem “the laptop does not look for Wi-Fi” is to check the functionality of the wifi module and install the latest drivers.

To avoid this problem, you should regularly update your computer software (manually or using special programs).

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The computer does not detect the Wi-Fi network

There are times when Wi-Fi is no longer available on the computer. Why this happens and what to do in each specific case will be discussed in this article.

The problem can be of two types: the computer does not see the Wi-Fi network at all, or only your access point is not in the list of available neighbor networks. In the first case, the problem is most likely in the Wi-Fi device, in the second - in the computer on which the network has disappeared.

First actions

What should you do first? You can reboot the router or computer on which the network has disappeared. Make sure the password is entered correctly and Caps Lock is not enabled. If the passphrase is correct, but the computer does not connect, then you need to look for other reasons.

If the computer does not see any access points at all and/or has stopped seeing them: you need to check whether the Wi-Fi adapter is active. You need to do this: on your computer keyboard, press the key combination “Fn+F3” (depending on the model and manufacturer, there may be a combination of “Fn+F2” or “Fn+F5”). For keyboard shortcuts to work, keyboard drivers must be installed. On older models, the ability to see Wi-Fi is sometimes enabled with a separate button.

Network problems

If you have installed the drivers for the keyboard, turned on the Wi-Fi module, but there is still no Internet, then open the “Control Panel”. Select “Internet Networks” and in “Sharing Management” select “Change adapter settings”. Here you will see a list of all adapters. Click on the “Wireless Network” item. If the icon is gray and says “Disabled,” then there is no Wi-Fi icon in the system tray, which is why nothing works. In this case, you need to enable it: right-click the context menu and select “Enable”. The wireless network becomes active. If an error occurs, running “Windows Network Diagnostics” helps. The system itself can find and correct errors.

If after this the computer does not detect an available network, then reinstall the drivers for the wireless network adapter. Open "Device Manager", click on "Network Adapters", find the desired device. You need to remove and install the driver again. Drivers can be found on the official website of your computer manufacturer or you can find a CD with a working driver included with your computer. After installing the driver, you need to turn on the Wi-Fi module and see how it works - if everything is activated, we figured out why the network disappeared.

Sometimes it happens that a laptop does not see the wireless network after being repaired or after cleaning. The technicians can turn off the antennas. Then you need to disassemble the laptop case and connect them or seek help from specialists.

Problems with the router

If the problem is that the computer does not see only your router, but sees others, then you need to take the following steps. Find the router settings and check the operation of the Wi-Fi adapter. To do this, open your browser and enter http://192.168.1.1 or http://192.168.0.1 in the address bar. If it doesn’t work out, you can take the IP address and authorization data in order to access the page from a sticker attached to the back of the router case or on the manufacturer’s website. On the router page you need to find “Advanced settings”, “Wi-Fi and network settings” tab. You need to set the “Enable wireless connection” flag. If the flag is set, but for some reason the problem remains, then the last way is to change the channel on which the router is running. In order not to change the channel blindly, you can use the “inSSIDer for Home” program, which analyzes the frequency range of the channel. Channels 1 to 11 are the American standard for Wi-Fi; most devices can do work on these channels. Free hours may be from 11 to 13. When changing settings, do not forget to click “Save”.

You can try to remove encryption, the setting is called “Authentication method”, change it to “Open System”. The problem may be the key length (WPA Pre-Shared Key). If it is more than 20 characters, then the router will stop working with such a long key. Most likely, the key can be no more than 12-13 characters. You can also update the firmware: section “Administration”, tab “Update firmware”.

Software

Why are there still difficulties? The problem may be in the software. If you have System Restore enabled in Windows, then restore points will be shown in the log when installing programs. You can reset the operating system to the day the network was running and allow it to see connections again. You need to select a state, click “Next”, and act according to the instructions. The Wi-Fi network can often disappear when updating the OS, so sometimes after the update you have to reinstall programs, including those for a wireless connection, and then the computer again sees what it needs.

Adapter failure

If nothing helps and the computer still does not see available networks, then there is a possibility that the Wi-Fi adapter may have failed: it may burn out during operation, it needs good cooling. If it burns out, it will not be displayed in the “Device Manager”; this problem will be displayed during the “Windows Diagnostics”. It will need to be repaired or replaced.

So, we have looked at the most basic sources of problems when a computer with Wi-Fi fails. Remember that any problem can be eliminated if you know its causes.

InstComputer.ru

The computer does not see the required Wi-Fi point.

So, a couple of months ago I encountered a common household problem. The laptop (Windows 7) sees many different Wi-Fi points, but does not see the required Wi-Fi point (the one to which it needs to connect), and all other computers have established a perfect connection and have been downloading porn from the Internet for a long time.

After googling on the Internet, I found a very trivial solution: I changed the Wi-Fi point channel (in the access point settings).

I assume that this is happening because recently there are wi-fi points in almost every apartment, and many of them have self-determination of the range. It works as follows: the point turns on and scans everything around, determines which channels are occupied and selects the one that is not busy, but due to the fact that your computer is located at a distance from it, it may well catch the signal that your point didn't catch it. You turn on your computer, it also scans everything around and is the first to catch a signal from the point that your point overlooked. And as a result, the computer does not see the desired point - it works with another on the same channel.

Quite recently, I again encountered this problem, but this time I did not have access to the point, and I really wanted to go to the Internet (the only entertainment I had at home was persimmons and the book “Western Philosophy from the Origins to the Present Day”). So I decided to try setting up wi-fi from the computer side.

In the adapter settings, I changed the “Scan acceptable interval to the minimum value” parameter and everything worked (control panel → network and sharing center → network and sharing management → wireless network management → adapter properties → configure → advanced).

This parameter is responsible for the broadcast scanning interval to search for new wi-fi connections. In my case, up to this point, a connection to the point had already been established; in the settings, the “Connect automatically if the network is within range” checkbox was selected (control panel → network and sharing center → network and sharing management → wireless network management (“Properties” right-click on the connection you need)). Accordingly, scanning the airwaves every 20 seconds gives a greater chance that the computer will see the desired point and immediately establish a connection with it. This is what happened.

And a little about other options:

Transmit buffer, Receive buffer. The value of this parameter allows you to specify the size of the buffer that stores data packets received from the network. On the Internet, in various forums, they advise setting these values to the maximum, unless of course you have a weak computer (in which case I would advise buying a new one).

Preamble 802.11b. A sequence of binary bits that help synchronize receivers and prepare to receive transmitted data. I'm connecting to an access point with an 802.11n radio type, so I set this value to LongOnly. If you have any problems in this mode, then set the default value.

Network address (Networkadress). MAC address of the configured software interface. Manufacturers themselves set this value as unique, but if you are hiding from someone, you can change it.

And further. On the “Power Management” tab, I unchecked the “Allow the computer to turn off this device to save power” option; anyway, the battery on the laptop had long since died.