Network security

How to fix the Network Security Key Mismatch error on Windows 11

A wireless connection is a blessing, but sometimes you may encounter errors while connecting to one. This tutorial will deal with one such error and show you how to fix the Network Security Key Mismatch error on Windows 11 computers. This problem can be easily fixed, and you can try to fix the problem in different ways. ways, and you can see which one works for you.

Fixed a network security key mismatch error

This error occurs when you try to connect to a Wi-Fi connection. You may have recently changed the security type like WPA, WPA2, WEP, etc. Changing the security can cause this error, so you can’t connect to the network you are used to.

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Correct the Network Security Key Mismatch error by restarting

This is what all of us face with a connectivity issue. This is the first step that very often fixes the error that you may be facing. If the router cannot update the security change automatically, you may get this error. Restart your router and see if it fixes the problem.
I also suggest restarting your PC while your router is connecting.

Forget the network

If restarting did not fix the problem, you can always forget which network you are trying to connect to and then reconnect by adding the password details. There are a few ways you can do this in Windows 11, but I’ll show you the fastest way to forget about a network and then reconnect.

Step 1: In the taskbar of your desktop, click on the Wireless icon. (You will notice that unlike Windows 10, you can no longer click on the icon alone. You will also select two other icons with it.)

Fixed a network security key mismatch error

2nd step: When the drop-down icon opens, click the Wireless icon.

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Fixed a network security key mismatch error

Step 3: Right click on the Wifi connection you are trying to connect to and select To forget.

Fixed a network security key mismatch error

Step 4: Follow now steps 1-2 again.

Step 5: Click on the connection you want to connect and select Connect.

Fixed a network security key mismatch error

Step 6: Enter the Security key and click Following.

Fixed a network security key mismatch error

Correct the Network Security Key Mismatch error by resetting TCP / IP

You may need to release and renew TCP / IP to resolve the issue. Before doing this, make sure to create a system restore point.

Step 1: Click on the search icon in the taskbar and type cmd.

2nd step: To select Execute as administrator.

cmd administrator

Step 3: You will be questioned, do you want to allow this app to make changes to your device? To select Yes.

Step 4: Type the following command and press Enter:

netsh int ip reset

This will reset the IP
Premium:

If you want a log file, as well as an IP, reset, use the following command and press Enter:

netsh int ip reset resettcpip.txt

If you are using a IPv4, use this command and press Enter:

netsh int ipv4 reset

If you use IPv6, use the following command and press Enter:

netsh int ipv6 reset

Reset network settings

You can also reset your network settings:

  1. Click on the the Windows in the taskbar and click on the Settings tooth.
    Windows settings
  2. Click on Network and Internet in the left pane.
    Network settings
  3. To select Advanced network settings option.
    Fixed a network security key mismatch error
  4. Click on the Network reset option.
    Fixed a network security key mismatch error
  5. To select Reset now.
    Fixed a network security key mismatch error
  6. Click on Yes for confirmation.
    Network reset

Restore router settings

If this error occurred after you changed the security settings, I suggest you go back to your original settings. It can also resolve the error if none of the above mentioned methods worked.

Hope this helps you and the Network Security Key Mismatch error has been resolved. If you’ve tried any other method, let us know in the comments below.


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