This error is more common among the Windows 7 users. The cause of the error appears to be wrong security mode, third-party antivirus tools, and as well as issues with the wireless drivers. If you are also troubled by this error, here are a couple of troubleshooting tips to help you resolve the possible network security key mismatch error in Windows.
How do I fix Possible network security key mismatch error?
1. Check your antivirus
Uninstall antivirus
2. Change the wireless network security type
3. Reinstall wireless drivers
4. Change your router’s security type
5. Release and renew IP address
The possible network security key mismatch error can be resolved by changing the security type. However, if the issue persists, check your antivirus and reinstall the network adapter. Do let us know which method helped you resolve the issue in the comments.
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