Secure Connection Failed

An error occurred during a connection to 216.1x.1xx.xxx. You have received an invalid certificate. Please contact the server administrator or email correspondent and give them the following information: Your certificate contains the same serial number as another certificate issued by the certificate authority. Please get a new certificate containing a unique serial number. Error code: SEC_ERROR_REUSED_ISSUER_AND_SERIAL

The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
Please contact the website owners to inform them of this problem.

 

 

Firefox stores certificates separately from the Operating System. Sometimes the certificate store can become corrupt and won’t let you delete certificates. To solve this, you’ll have to reset it manually.

Go to Start > Run

Type %appdata% and click Ok.
Result: A folder should open up.

 

Now go to Mozilla, then Firefox, then Profiles, and choose your profile folder (it probably is named a random string of letters, often followed by .default).

 

Delete the file called “cert8.db”.

This should fix the issue .