Correcting the possible network security key mismatch error

  • A common and easy-to-fix message you might get is “Network security key mismatch” error.
  • A common reason for a mismatched network key is incorrect password entry.
  • If the password entered does not match the password stored on the network, this error will be displayed on the screen.
  • If you have a third-party antivirus program installed, try temporarily disabling it from the taskbar.
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How Do I Find My Network Security Key

By directly connecting to your router, you will be able to access your network security key in the quickest and easiest way.

What Are Network Security Keys

It establishes a safe, encrypted connection between users and the WiFi router, preventing outsiders from accessing the network. A network security key is basically a code or string of characters.

Whats A Key

You need a network security key to connect your device to your router if you have one in your house. The password to connect to your router is your network security key.

Security Key Of Network

If your home Wi-Fi network is secured (as it should be), you need to enter a network security key to join it. For example, you should enter a network security key to connect to your home Wi-Fi network. As a way to protect your Wi-Fi network from unauthorized access, network security keys are used to prevent unauthorized access.

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There is a very common domain name mismatch error, which occurs when the domain name does not match the Common Name or SAN value of your SSL / TLS certificate.

In order to protect their data properly, organizations must implement several layers of security, commonly referred to as Network Security Mismatch.

You might get an error message when you try to connect to the network the first time you turn on your laptop. It is easy to fix this error message, but if you have never seen it before, you may not know what it means or how to fix it. If you turn on your laptop and try to connect to the network, you will get an error message saying “Network security key mismatch.” It is luckily easy to fix this error, so little technical knowledge is required.

When you connect to a network, this message appears in a pop-up window in which you enter your password. Simply put, this message means that the string you entered as your network password does not match. Once your password is set, it must be entered exactly as it was entered when you created the password. This includes adding all letters, numbers, and symbols, and the password is case sensitive. If the password entered does not match the password stored on the network, this error will be displayed on the screen.


What causes the “Network security key mismatch” error in Windows?

What causes the "Network security key mismatch" error in Windows?

Despite a limited number of known causes, we have successfully compiled a shortlist of possible causes based on user feedback. Check out these instructions!

  • You must enter your password exactly as it appears in the password in case-sensitive letters for a mismatched network key.
  • The device you are using may lock up and need to be restarted if you have entered the correct password. Often, restarting the device will resolve the problem.
  • It is also possible that a password mismatch occurs if your device is incompatible with the Wi-Fi network you are trying to access. The password error message appears as a result. Try connecting to only the area of the network that your device supports, then check what version the Wi-Fi network supports.
  • There is a possibility that your network is stored under a different type of security by Windows, and you cannot connect until you change how you connect to the network. This change would need to be made on your router, but it may be possible to do it directly on your computer.
  • The antivirus utility can cause a wide variety of connectivity problems, including the storage of Wi-Fi passwords and the connection to wireless networks. You should remove your antivirus tool immediately, since this isn’t a security issue, but rather a huge problem.
  • If your current driver uses outdated security modes, protocols, or encryption, it may not function properly. Consider upgrading your drivers today!


How do I fix the “Network security key does not match” error?

Updated: February 2024

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How do I fix the "Network security key does not match" error?

Check your antivirus program

  1. The “Possible incorrect network security key” error has been caused by third-party antivirus programs interfering with your wireless network.
  2. You can temporarily disable an antivirus program if you have one installed.
  3. The taskbar icon for the antivirus program can be temporarily disabled.
  4. Using the right-click menu, choose Temporarily disable antivirus.
  5. The protection can also be temporarily disabled for a period of ten or fifteen minutes with some antivirus programs.
  6. Check if the problem has improved after deactivating your antivirus and setting up your wireless network again.

Deactivating antivirus

  1. It may be necessary to change the antivirus if the problem occurs when antivirus is enabled after it has been fixed with antivirus disabled.
  2. Select Control Panel by pressing Windows key.
  3. You will find the Control Panel there.
  4. Activate the Programs and Features option by clicking Programs – > Programs and Features.
  5. Then select Uninstall for Antivirus.
  6. To confirm, click Yes.
  7. Install another antivirus solution after uninstalling the current one.

Change the wireless security type

  1. The Run window will appear when you press Windows + R.
  2. The Control Panel can be accessed by entering Control and clicking OK.
  3. The Network and Sharing Center can be found under Network and Internet.
  4. You can manage wireless networks by clicking on the Manage wireless networks link in the left pane.
  5. Check the notification bar and locate the problem network.
  6. The network can be deleted by clicking Delete.
  7. To add a new item, click Add.
  8. A network profile can be created manually in the next window.
  9. Select Manually connect to a wireless network under Change network settings in Windows 10.
  10. You can add wireless networks by entering their names under the Enter wireless network information section.
  11. In the previous steps, you specified a security type. Try changing it.
  12. The security key needs to be entered.
  13. If you select the Automatically start this connection box, the connection will be started automatically.
  14. Click Next.
  15. Check to see if you have no trouble connecting to the network.

Installing the wireless driver

  1. The “Run” application can be launched by pressing Windows + R.
  2. Using the Device Manager is as simple as typing devmgmt.msc and clicking OK.
  3. The Network Adapters window can be found in Device Manager.
  4. Then right-click on the adapter to find the wireless network settings.
  5. Select the Delete device option. To confirm, click Yes.
  6. Upon completion of uninstallation, click Action.
  7. Changes to hardware should be checked.
  8. Wireless network drivers will be automatically installed by Windows if they are missing.

Change the security type of your router

  1. For more information, refer to the user manual of your router for the IP address used to log in to the router’s administration center.
  2. The Wireless Security Settings can be found once you have logged in.
  3. Switch to a different security mode.
  4. Your changes will be saved when you click Apply Changes.
  5. Take a look at your router’s administration center after you exit.

Sharing and Updating an IP Address

  1. The Run window will appear when you press Windows + R.
  2. You will be prompted for a command prompt when you type cmd followed by OK.
  3. The IP address can be released by typing the following command at the command prompt:
    Release IP configuration.
  4. To update the IP address, type the following command and hit Enter:
    Updating IP configuration.
  5. Order request closed.
  6. Check if improvements can be made by reconnecting to the wireless network.

When the error persists, check your antivirus program, reinstall the network adapter, and change the security type if necessary.

Where Is The Network Security Key On My Router

Locate network icon. Click right-click on it.

What Is The Security Key For Wifi

There are several different types of network security keys, including WPA, WPA2, and WPA3, which are passwords that are used to connect to wireless networks.


RECOMMENATION: Click here for help with Windows errors.

Frequently Asked Questions

  1. Check your antivirus program.
  2. Change the security type of your wireless network.
  3. Reinstall the wireless drivers.
  4. Change the security type of your router.
  5. Unblock and update the IP address.

If you enter a password and a message appears about a network security key mismatch, it means that the combination of characters you enter to access the network is incorrect. It does not match the password that is set for your network.

Sometimes your network security key may not work due to certain vulnerabilities in your system. There may be a problem with your network connection or router, and it is recommended that you set a new password for your Wi-Fi network to solve it.

If you've lost or forgotten your home wireless network security key or password, look for a sticker on the bottom or side of your router that shows the default password. If your router does not have a default password, refer to your router's manual.

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Mark Ginter is a tech blogger with a passion for all things gadgets and gizmos. A self-proclaimed "geek", Mark has been blogging about technology for over 15 years. His blog,, covers a wide range of topics including new product releases, industry news, and tips and tricks for getting the most out of your devices. If you're looking for someone who can keep you up-to-date with all the latest tech news and developments, then be sure to follow him over at Microsoft.