Error: sec_error_reused_issuer_and_serial

Problem

You come across the following error message when trying to browse to a secure website (SSL)

Secure Connection Failed
 
An error occurred during a connection to 192.168.12.122.
 
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 can not be shown because the authenticity of the received data could not be verified.
 
    * Please contact the web site owners to inform them of this problem.

Solution

If you have recieved this error and are trying to access something that has a self signed certificate, there are two places in Firefox that you must visit in order to access the particular site again.

The first visit Tools –> options –> Advanced –> View Certificates

You must remove the certificates in the “Servers” tab, then under the same location you must remove the certificate authority because it is a self signed certificate, so on the “Authorities” tab, simply find the CA for the device you are having trouble with and delete it.

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