The computer does not see the wifi network. The laptop does not see WiFi: causes and solutions
WiFi technology is very widely used in the life of a modern person, because it allows you to easily and quickly solve the problem of connecting to the Internet without using conventional wires. This is especially true in the case of using laptops, with the help of which you can access the Internet in any convenient place due 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. There are many reasons why Wi-Fi may not work on a laptop computer. 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 those that can be completely eliminated on your own. Let's consider them.
Problem with laptop or router?
A fairly common problem that a laptop has stopped connecting to a WiFi network is not a problem 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 eliminate 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, and the like.
If Wi-Fi does not work from another gadget, then the problem lies precisely 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 this diagnosis, it can be precisely determined 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 adapter is enabled wireless connection on a laptop. Almost all modern models have indicator lights the operation of the WiFi module and for its hardware activation there are special key combinations.
Usually, a lit indicator indicates that the module is on. If the indicator does not glow at all or shines in red, then the Wi-Fi does not work precisely because of the adapter wireless network. It needs to be enabled.
Most often, such indicators are located directly on the keyboard, side or front panel of the device. Sometimes they are located on the monitor case or near the touchpad.
To enable the module of such a network, press the key combination Fn and one of the system F1-F12. The specific combination depends on the laptop manufacturer. Usually, the corresponding antenna icon is located on the desired key. If it is not there, then to enable Wi-Fi, you should try to press the standard button 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 appropriate keys, we check whether the indicator of the wireless connection module lights up or whether it stops glowing red. After that, you should try to connect to the network again. If this does not help, go to the next step.
Software inclusion
When Wi-Fi stopped working and its hardware inclusion does not give positive results, it is also necessary to implement its software inclusion, which is carried out directly from operating system that the laptop is running.
To implement software turn on wifi, which 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, the network connection status icon is selected;
2. From the list that opens, select the item "Network and Control Center and public access” or “Network settings” depending on the version of the operating system;
3. The next step is "Change adapter settings".
Among the list of all existing connections pay attention to the color of the "Wireless" icon network connection". If your WiFi does not work and the wireless adapter is disabled, then the connection icon will not be highlighted. In this case, click on its icon right click mice, from the opened context menu select "Enable". In this case, the color of the connection icon should change.
At the same time, the wireless network adapter turns on, it remains to find the desired one in the list of available wireless networks and connect to it.
If, after such actions, Wi-Fi, which has stopped working, continues to be inactive, you need to move on to the next method to solve the problem.
Installing and updating the driver
Quite often, the Wi-Fi wireless connection does not turn on due to the lack of a driver or when it is very outdated. To determine the presence installed driver, it is necessary from the context menu of the "My Computer" icon, which is located on the desktop or in the "Start" menu, select the "Properties" item. 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 network wireless adapter laptop. Usually its name is “Wireless Network Adapter” or “Wireless Network Adapter”, along with which the manufacturer of the device should be indicated: Realtek, Atheros, Qualcomm, or something else.
Having found the desired item and clicking on it with the right mouse button, "Properties" is selected from the context menu. In the window that opens in this case, the item "The device is working properly" should be present. But even if there is a mark about the normal operation of the device, this is far from a guarantee that the correct driver version is installed and Wi-Fi is turned on correctly. To check it, in the window with the properties of the wireless device, go to the "Driver" tab and pay attention to the items "Date of development" and "Vendor".
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 should 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 marked with a yellow exclamation point, this means that the device is disabled, as a result of which the network has stopped working. In this case, having opened the device properties window, you need to click the "Enable" button.
Another reason why Wi-Fi stopped working on a laptop may be that the power 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" icon;
3. In the window that opens, select the "High performance" or "Balanced" mode.
External signal obstructions
It's also worth noting that a broken wireless network can also be the result of more than just laptop problems. The signal of a wireless connection depends on some external factors that can weaken it. Ceilings, walls, floors, and similar obstacles significantly degrade the signal quality of the access point and laptop.
As you know, the signal quality on a personal computer is displayed in the form of several marks - the more there are, the better the signal is. If the wireless connection level is displayed as 1 or 2 marks, then you can not try to use WiFi - in this case, it will not work properly.
In this case, you need to move the router closer to your workplace, move workplace closer to WiFi router Or buy a new, more powerful router.
Other causes of Wi-Fi problems
The causes of problems with the functioning of the wireless network adapter described above are the most common and you can fix them on your own.
It should be noted that all this software ways solutions to the problem, which will be solved by installing, reinstalling or updating the device driver, as well as performing some operations with the OS.
But often the problem with the operation of the wireless connection module lies in hardware errors. What are these errors? These are problems that are directly related to the board itself, most often - its physical damage.
To fix such problems, you will need to disassemble the laptop. It is worth noting that such actions can only be performed if you have certain skills in this area. If such skills are not available, it is better to entrust the work to professionals.
One of the most common physical damage is an unconnected antenna wire to the proximity module. This problem occurs with laptops that were under repair or if their owner cleaned the cooling system from dust on their own. In such cases, the antenna is sometimes simply forgotten, as a result of which the adapter will not be able to establish a connection even near the signal source itself. To fix this problem, you just need to connect its antenna to the Wi-Fi module.
Sometimes the reason that Wi-Fi stops working is normal overheating. network card. This is most often the result of the laptop being placed on some kind of soft surface. The thing is that at the bottom of the device there are holes through which cold air enters, cooling all the computer boards. By blocking these openings, the system will overheat, which can lead to the failure of certain components.
Another common cause of device overheating is dust, which can prevent cold air from entering the cooling system.
That is why, in order not to encounter such problems, it is recommended to clean the laptop from dust at least once every year: in this case, it will be possible to avoid repairing the laptop as a result of overheating of its components.
In the most advanced cases, the wireless adapter may even burn out. In this case, only replacing it with a new one will help. You can determine such a problem using the device manager, in which the module will simply cease to be displayed. When you try to install a driver for a wireless network, a message appears stating that the corresponding device is not installed in the system.
If nothing helped
If none of the tips above helped, you can use a simple, but at the same time 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 troubleshooting function that is in the Windows operating system helps to solve problems with a wireless network.
Thus, most of the above existing solutions problems related to the fact that Wi-Fi stopped working on a laptop. Almost all of these methods and recommendations can be used by anyone who is faced with similar problem because it does not require any special skills.
If nothing helps, and the wireless network does not start working, there is only one way out - to 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.
So, a couple of months ago I ran into a common household problem. Notebook ( Windows 7) sees many different wi-fi points, but does not see the desired wi-fi point(the one to which he needs to connect), and all the other computers have perfectly established the connection and have been downloading porn from the Internet for a long time.
Googling on the Internet, I found a very trivial solution: changed channel WiFi hotspots (in the access point settings).
I assume this is because the recent times wi-fi there are points in almost every apartment, and many of them have a self-determination of the range. It works as follows: the point turns on and scans everything that is around, determines busy channels and chooses one that is not busy, but due to the fact that your computer is far away from it, it may well catch the signal that your point didn't catch. 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 — she works with another on the same channel.
More recently, I again ran into this problem, but this time I didn’t have access to the point, and I really wanted to use the Internet (the only entertainment at home was persimmon and the book “Western Philosophy from the Beginnings to the Present Day”). So I decided to try setting wi-fi from the computer side.
In adapter settings changed parameter "Scan valid interval for minimum value" 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 interval for scanning the air to search for new wi-fi connections . In my case, up to this point, the connection to the point has already been established, the checkbox is set in the settings"Connect automatically, if the network is in range" (control panel → network and sharing center → network and sharing management → wireless network management ( « Properties» right-click on the connection you want)). Accordingly, scanning the air every 20 seconds gives more chances that the computer will see the desired point and immediately establish a connection with it. This is what happened.
And a few other options:
ad hoc 11 n . What is it, you can read.
Transmit buffer, receive buffer (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, on various forums, it is advised to set these values to the maximum, unless of course you have weak computer(In this case, I would advise you to buy a new one).
Preamble 802.11b (Preamble 802.11b). A sequence of binary bits that aid in the synchronization of receivers and preparation for the reception of transmitted data. I am connecting to an access point with 802.11 radio type n , so I set this value to "Only long" ( Long Only ) . If a you will have some problems in this mode, then exhibiting layte default value.
Network address (Network adress). MAC - configured interface address software. Manufacturers themselves set this value to be unique, but if you are hiding from someone, you can change it.
And further. On the tab"Power management" I unchecked "Allow this device to turn off to save power" Anyway, the battery on the laptop has already died a long time ago.
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 the Wi-Fi network is quite widespread today. It is available in cafes, restaurants, libraries, railway stations and even public transport. All this thanks to the Wi-Fi module available in portable devices. However, sometimes this wireless connection does not work correctly.
A little about Wi-Fi coverage
The Wi-Fi network is wireless and based on IEEE-802.11. To date, the data transfer rate through this network can reach 600 Mb/s. Wi-Fi coverage has a number of positive aspects, namely:
- To connect with your phone, laptop or tablet, you do not need a cable at all. Thus, the amount of cash costs is reduced.
- The owner of a phone, tablet or any other portable device not limited to a specific location. The use of the Internet can be anywhere the user wishes.
- 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 connect to it at the same time.
Causes of Wi-Fi connection failures
It is not worth mentioning such a reason as the portable device being too far from the connection point, that is, the router. The main thing is to keep the necessary distance. However, if your laptop, phone, or tablet is within a few meters of 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 enabled. On newer models, you can use keyboard shortcuts such as Fn and F2 to enable Wi-Fi access. Additional help provided by the device documentation.
- The next reason is damage to the drivers that ensure the high-quality operation of the Wi-Fi module. The problem is easily solved by reinstalling the drivers, which can be downloaded using the official website of the manufacturer. Other sites may offer substandard products.
- Sometimes the adapter module doesn't work at all. This is due to the lack special utility, which allows you to manage your wireless network. The utility can be either found on the manufacturer's website or installed from the disk that came with the laptop.
- Sometimes WiFi connection completely unavailable. This refers to cases where all devices recognize the network, but one of the devices does not. In this situation, you must first turn off the router for 10-30 seconds, and then turn it back on. Sometimes the problem occurs due to an unexpected failure of the router settings. All you need to do is reconfigure it. In this situation, the provider's support service will provide the best assistance, because each provider has its own type of settings.
- It also happens that the signal is almost imperceptible, characterized low level. At the same time, some devices recognize the Wi-Fi connection, but the connection is still not possible. This situation may arise if the router is located quite far from the laptop, phone or tablet.
- Theoretically, the reason may 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 change the purchased product. If you have an old device, repairs can be very expensive. Therefore, many advise to purchase an external Wi-Fi adapter, which is quite affordable.
So, it is important to remember that it is not enough just to purchase a router, connect the appropriate cable to it and connect to WiFi networks. A setting is required, which is best left to the master.
Hello dear friends. As you probably already understood from the title, today I decided to touch on a very serious and painful topic, and try to figure out what to do when Wi-Fi does not work on a laptop or netbook and how to connect a laptop to a Wi-Fi router. By the way, it can be not only a laptop, or a netbook, it can also be an ordinary desktop computer with Wi-Fi receiver. There have been a lot of similar questions lately, mainly to the article.
Now we will try to figure out step by step what and why problems may appear when connecting a laptop to wireless wifi networks. We will also try to find a solution to this very popular and unpleasant problem with connecting to Wi-Fi, or rather an unsuccessful connection.
Most often, problems arise when you cannot turn on the Wi-Fi module itself on a laptop. And when Wi-Fi turns on, everything available networks The laptop finds it, but when I try to connect, it says . You need to check if the drivers are installed on the Wi-Fi adapter, if Wi-Fi is enabled on the laptop, etc. Now we will do this.
I noticed that most often problems with connecting to Wi-Fi are found in Windows 7. It is on this OS that the error network without access to the Internet very often appears, I wrote how to solve this problem in the article, the link to which is above. In fact, as practice shows, there can be a lot of reasons for this problem. And if there are many reasons, then there are many ways in which you can make a laptop connect to a Wi-Fi router.
But it is not always the laptop, netbook, etc. that is to blame. There may be a problem in the access point, that is, in the Wi-Fi router. And the first thing we need to do when there is a problem with connecting to Wi-Fi is to determine what is the reason, in a laptop, or in a Wi-Fi router. Now I will consider the problem with connecting to my own router. Because if you are unable to establish a connection with someone else's Wi-Fi, then all claims are against the neighbor, it is most likely that he has problems :).
Who is to blame, laptop or Wi-Fi router?
As I wrote above, you first need to find the culprit. Before you make any settings on a laptop or Wi-Fi router, you need to understand what the problem is, which is why you can’t connect your laptop to Wi-Fi. You can just set it up so that you then have to do it and set everything up again. Most The best way to determine in which device the problem is hiding, it is to try to connect another device to the router, for example, another laptop, tablet, or phone. And a laptop that has problems connecting to Wi-Fi, you need to try connecting to a different wireless network.
I think that you understood my idea. If there are other devices connected to your router (best with similar operating system) will connect without problems, then the problem is in the laptop. Read this article further, now we will try to solve it.
Well, if problems when connecting to your network occur on other devices, and the “problem” laptop connects to other networks without problems, then the problem is in setting up the Wi-Fi router. See the article on, it might come in handy.
I will show on the example of a laptop that runs on Windows 7. This is currently the most popular operating system.
I advise you to immediately pay attention to the icon that displays the status of the Internet connection. It's in the notification bar.
If the internet connection status looks like this:
First you need to check if the Wi-Fi drivers are installed and if the Wi-Fi adapter is enabled.
Right click on "My computer" and select "Properties". Left select "Device Manager".
Open a tab in a new window “Network adapters” and see if there is a device like Wireless Network Adapter (Your name may be different). If you have such a device, then right-click on it and select "Properties". Another window will open, make sure it says "The device is working properly."
If everything is about the same as mine above in the screenshot, then everything is fine, the driver is installed. And if there is no Wireless Network Adapter device and you have unidentified devices, go to the website of your laptop manufacturer, download and install the Wireless Network Adapter driver for your model.
Learn more about installing and updating the driver for the wireless adapter -.
Dealt with the drivers.
Checking if Wi-Fi is enabled on the laptop
If the driver is installed, but the Wi-Fi module is disabled, then the connection status will be the same:
Usually the wireless network adapter on the laptop is turned on, but it doesn't hurt to check. Wi-Fi on laptops (netbooks) is usually turned on and off with a keyboard shortcut. On my ASUS K56cm, these are the keys FN+F2. But although when I press these keys, I get a message that wireless adapters are enabled / disabled, but nothing happens. Look for a key on your laptop FN and key with a picture of a wireless network. Press them at the same time.
On some laptops, there may be a special switch on the case that you can turn Wi-Fi on or off. For example on Toshiba Satellite L300 it looks like this:
Enable or disable the wireless Wi-Fi adapter in Windows 7
But the best way to check if the wireless network adapter is working or not is to go to the network control center and see.
So on the notification panel, right-click on the Internet connection status icon and select "Network and Sharing Center".
Then select on the left.
Looking for connections “Wireless Network Connection”. If everything is fine and the Wi-Fi adapter is enabled, then it should look like this:
If the adapter is disabled, it will look like the screenshot below. Click on it with the right mouse button and select "Enable".
Using the methods described above, we must make sure that the status of the Internet connection on the notification panel is like this:
This status means “No connection - There are available connections”- this means that the Wi-Fi adapter is turned on and there are available wireless networks for connection.
If the connection status is like this:
This means that Wi-Fi is on, but the laptop simply does not see networks available for connection.
Error “Windows could not connect to…”
We figured out the problem when the wireless network module is disabled, or does not work at all. Now consider the case when the laptop finds available Wi-Fi networks, but when trying to connect to Wi-Fi it says: “Windows could not connect to…”, where instead of dots is the name of the network you want to connect to.
If you have a network connection status such as in the screenshot above (via one, network with yellow icon), then click on it, and you will see a list of networks available for connection.
Select the desired network, click on it, then click the "Connect" button.
If the set is password protected, then Windows will ask you for a password. Write down the password for the network and click "OK".
And if everything is fine, then your laptop should connect to the Internet via a wireless connection. And the Internet connection status should look like this:
But it is at the moment of connection that the error "Windows could not connect to ..." very often appears. It looks like this:
Unfortunately, friends, no. certain decision this problem. But I can download that very often the problem with such an error appears due to WiFi settings router. Maybe through the type of security and encryption that is installed on the Wi-Fi router, read more about this in the article. There may also be a problem with the distribution of IP addresses.
If you notice, then in the window with the error "Windows could not connect to ..." it is possible to run “Troubleshooting”, sin not to use. Try to run it, I heard somewhere that there are cases in which it helps :). But seriously, sometimes it really helps. Windows will check if the wireless adapter is ready, check settings, etc. And if it can, it will fix the problem that is preventing you from connecting to Wi-Fi.
Just reboot the router and then the laptop. Very often this helps.
Update
I noticed that in Windows this error appears when the settings that are saved on the computer for your network do not match the current network settings. I'll explain now.
For example, your laptop was connected to Wi-Fi, it automatically connected to the network. But you took and changed the password, or the type of network encryption. Now the laptop is trying to connect to the network, but the parameters no longer match, that's the error.
It is enough just to delete the network on the computer and re-establish the connection. I wrote about it in an article
Conclusion
Great article turned out, and I hope that it is useful. I wrote it for half a day, intermittently, of course, there were still problems with adding screenshots to the site, but I sort of solved it.
I tried to collect all the necessary information that should help you solve the problem that occurs when connecting a laptop or netbook to Wi-Fi. If I forgot to write something, then in the future I will definitely supplement the article, I will also be very grateful if you share information in the comments that helped you solve the problem with connecting to a wireless network.
If you have any questions, then ask them in the comments, we will try to figure it out. Good luck!
More on the site:
Why doesn't Wi-Fi work on a laptop (netbook)? How to connect a laptop to a Wi-Fi router? Error “Windows could not connect to…” updated: February 7, 2018 by: admin
No one is immune from malfunctions of the wireless Internet connection. A W-Fi connection can be non-functional for a number of reasons. And it is not necessary that these reasons will be somehow connected with each other.
Content:
You can easily check why the laptop does not see the Wi-Fi network. To do this, we first check the access point or router, as well as the laptop itself for performance. It is important to know which device is causing the problem.
Let's start with the router. Quite a common cause of a malfunction is the banal “freezing” of equipment. The first sign of this is an atypical indication, that is, the LEDs on the router are blinking in an unusual mode. To correct the situation, restart the device or unplug it, wait a couple of minutes, and then turn it on again. If it's a minor internal glitch, restarting solves the problem. The laptop, in turn, will quickly pick up the signal.
Voltage fluctuations can cause parameter reset. The router stops signaling. In some cases, the Internet connection is also lost. If this happens, then the settings must be re-entered using the device web interface. Input addresses: 192.168.1.1 or 192.168.0.1. The choice will depend on the model of the router. You can access the interface from any browser. If after that the connection worked, then everything is in order with the device.
Useful advice: The reason for the incapacity of the router is often the involuntary reset of the router to the original settings. To set up the configuration again, it is better to use the services of specialists from the provider company.
If each of the ways to check the router did not work, you need to check why the laptop does not see Wi-Fi. First of all, we check the activity of the network equipment. On the case of most models of modern laptops there are LEDs. We will be interested in the one that is marked with an antenna icon or directly with the inscription "Wi-Fi". If the diode is lit, then the built-in adapter is functioning. Otherwise, the adapter must be started. We hold down the "Fn" key and another one, where there is an antenna icon.
The cause of temporary inoperability may be a malfunction of the software tools operating system. Connection activity will be checked through the Windows Control Panel. If it does not work, then the launch is carried out using the context menu.
The NE may not be listed at all in the list of available connections. We check the section "Network adapters", and more specifically - wireless devices"Wireless". Enable the adapter using the context menu. Then we restart the computer.
Why does the laptop not see wifi? Typical Causes
There are several simple reasons why the laptop does not see Wi-Fi. For example:
- The router is not turned on - turn on the router;
- No Wi-Fi coverage – get closer to the source;
- Your router is "buggy" - reboot it;
- W-Fi receiver is not turned on - turn it on.
However, there are more serious violations of the connection. These include:
Why is Wi-Fi slow?
In addition to the fact that the computer does not see "wi-fi", the problem of a slow connection is also relevant. There are several reasons: