Fix Laptop can not catch Wifi on Windows 7/8 / 10 effectively

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If you are using a laptop to work, then perhaps at least once you have encountered error The computer does not receive Wifi signal, or even the Wifi signal bar does not appear under the Taskbar, right?

Wifi loss is a very common error on laptop computers because it is not only due to a few fixed reasons but there are many causes leading to this error. But fortunately the way to fix it is also relatively simple ?

Yes, and in this article I will summarize some methods to fix the loss of Wifi signal, not catch Wifi on Laptop or some errors related to Wifi network for you to follow.

I. Cause the computer does not receive Wifi signal?

As I said above, there are many causes of this error, some of the most common errors such as:

  • Have not turned on Wi-Fi on Laptop.
  • The computer does not have a Wifi driver or the Wifi driver is old and not working properly.
  • The reason is from the Router, the wifi router that your computer is getting the signal from.
  • The cause may also be that you previously installed 1 VPN client software to configure Fake IP address, which made Windows 10 misunderstand it as an error.
  • Because the computer is infected with a virus, it cannot connect to Wifi.

Now we will start to solve one by one. As I said above, there are many causes of the computer not receiving wifi or not able to catch Wifi, so you need to know how to identify and eliminate the cause of the error to save more. save repair time.

Read more:

1 / Check if the Wifi transmitter is turned off?

First, check if your computer has Wifi reception / reception turned off, each computer will have a different location. There are laptops that use hard keys to turn on / off Wifi, so you should pay attention.

See more:  Fix ALT+F4 key combination not working on Windows

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But most of today’s new laptops are always integrated on the keyboard, for example, their DELL Laptop line is a key combination. Fn + PrtScr.


Some other laptops use the following key combination:

  • Asus laptop: Fn + F2
  • Laptop Lenovo: Fn + F5 or Fn + F7
  • Acer Laptop: Fn + F5 or Fn + F2
  • Laptop HP: Fn + F12
  • Toshiba Laptop: Fn + F12

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2 / Please restart the computer before doing the next steps

Before performing the next steps, you should restart your computer first, because many times just restarting the computer will solve the problem. Not only the Wifi error, but many other small errors, just Restart the computer can solve the problem for you.

The reason may be that the computer works for a long time, leading to an error, or during the process of using Windows, there is a software conflict, a file error … That’s why I recommend you to restart your computer. before proceeding to the next steps.

3 / Wifi icon has a red x and the signal bar is blurred

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This error is usually because your computer is missing Wifi driver, so you need to install additional drivers before the computer can receive Wifi waves.

To install Wi-Fi Driver, you can use 3DP NET software (recommended) or use WanDriver software, or you can click here to choose the right way for your Laptop.

Tips: For Windows 10 operating system, we recommend that you use the Windows Update feature to upgrade Windows to the latest version. The update package comes with the computer driver packages, so you will get the standard driver for the machine.

Okey, after the driver is installed, the computer will have an icon like this, that is, your computer has received the signal now.

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Note: For Windows 8.1 or Windows 10 there will be an additional airplane mode (Airplane mode) As shown above, you must turn this feature off to use Wifi.

4 / Wifi error is not displayed, when you press the Wifi icon, the list of networks does not appear

Yes, this is also a fairly common error when you are using a Wifi network on a Laptop, this error often occurs on Windows 8, 8.1 and Windows 10.

Reason: I have encountered this error so I know the cause of it. Well, that is before you installed a VPN software to configure fake IP, leading to the operating system misunderstanding it as an error.

How to fix:

+ Step 1: Please right-click This PC => select Manage => select next Device Manager. Then, you do the following steps:

  • (first) Select Device Manager.
  • (2) This part is the entire Driver on your computer, you find the line Network adapters.
  • (3) Find the line Wireless (mạng wifi).
  • (4) Right click on it and select Uninstall device to remove this driver.
See more:  How to upgrade to the latest Windows 10, Update Win!

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Next, right-click on the line Network adapters and choose Scan for hardware changes let the computer automatically reinstall Driver for Wireless.

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+ Step 2: Please turn off booting with that system (VPN software).

If you do not know how, you can see Step 2 in the tutorial to speed up the computer that I wrote earlier => Then restart your computer to check the results.

+ Step 3: In a bad case, if after restarting the computer but still not, then continue with the following steps:

Perform:

Run cmd with Admin => then use the following commands to perform Fix error: (note after each command, press Enter to do it.)

reg delete HKCR CLSID {988248f3-a1ad-49bf-9170-676cbbc36ba3} / va / f

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Continue to enter the following command:

netcfg -v -u dni_dne

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Finally, restart your computer to check the results.

5 / Turn off battery saving mode when using Wifi on Laptop (Save Power)

Battery saving mode when using Wifi is also one of the reasons why your computer fails to access Wifi, so you should try to turn this feature off.

Perform:

+ Step 1: Right-click the network icon on the Taskbar => select Open Network and Sharing Center => select next Change adapter settings to open the window Network and Sharing Center.

Or you can quickly open a window Network and Sharing Center by opening the Run dialog box (Windows + R) => enter the command ncpa.cpl => press Enter.

+ Step 2: Right click on the Wifi icon that you are connected to => select Properties

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At line Client for Microsoft Networks => click select Configure....

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+ Step 3: You switch to tab Power Management => unchecked line Allow the computer to turn off this device to save power => press OK to agree.

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6 / Computer has yellow exclamation error

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Error yellow exclamation in the Wifi icon, I have instructed how to fix the error for you, this error is very common.

So, if you do not know how to fix it, please take a look at this article: Network error of yellow exclamation and how to successfully fix it 100%

7 / Wifi network error Limited

This error I see is a lot of you encounter, when connecting to the Wifi network, a message appears as shown below. The network icon is still available but cannot access the internet.

sua-loi-laptop-not-to-be-parallel-wifi-10

So how do you overcome the above situation? Try the following methods:

1. Restart the computer and reconnect.

See more:  Instructions to Set more virtual RAM for Windows 7/8 / 10 computers

2. For Windows 8 and above, right-click the name of the Wifi network you are connecting to => select Forget this network to re-enter your password. As for Windows 7, please review in the tutorial ” fix the yellow exclamation error “On the blog.

Alternatively, you can use the command netsh wlan delete profile * To perform the Forget this network feature => then press Enter to perform. Then you can re-enter the password for that network.

3. Reset the static IP address for the computer.

4. Restart TCP / IP.

Please do as follows: Open a cmd window with administrative privileges (see instructions if you do not know) => then use the following command:

netsh int ip reset

=> Press Enter to perform => then restart your computer.

5. Reset TCP / IP Autotunning

Open cmd as administrator => then use the commands below:

netsh int tcp set heuristics disabled
netsh int tcp set global autotuninglevel = disabled
netsh int tcp set global rss = enabled
netsh int tcp show global

=> After each command, press Enter to execute => finally restart your computer.

8 / Due to the router, your WiFi router has a problem

The cause may also be that your Wifi transmitter used for a long time leads to errors, to fix this problem you should turn off the Router for about 3 minutes and then turn it on again to see the results.

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9 / The computer can not catch Wifi, it is also caused by virus

Well, the other reason I want to mention is the virus caused. If your computer does not have an anti-virus software, please go here to download and install it on your computer. If you are using Windows 8 or higher, you can always use Windows Defender built on the Windows operating system to scan.

Note: You should limit the use of Crack software, unknown software, unhealthy websites …. to minimize the possibility of virus infection on the computer.

10 / What should I do if the computer still cannot access the Wifi?

If you have done all the ways but still cannot, just reinstall Windows only. This is the last way we must and you should accept.

In the case that after you have installed a new Windows, have fully installed the driver and still cannot anymore, chances are that there is a problem with the wifi card. You should bring it out to the store for workers to inspect, repair and replace.

Note: There is a simple way to check if the cause of the laptop does not have Wifi is to go to the mini Windows to test the network.

With this way, you can check the exact cause is your Wifi Card damaged or not. But first, you need to create a bootable usb first!

II. Epilogue

Well, above are the most common causes Laptop error cannot catch Wifi that you should know.

I will regularly update the causes of the error and how to fix it in this article, so if you are interested in this issue, please Bookmark the article for convenience.

Hope this article will be useful to you, wish you success!

Kien Nguyen – techtipsnreview

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Source: Fix Laptop can not catch Wifi on Windows 7/8 / 10 effectively
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