@gregors said in FOGclient Response Failed to decrypt data on server:

The IP or the host name was not changed from the initial OS installation.

Thanks for the info. No idea what would cause the new generated cert to not match the key.

@GregorS
The problem is with your server. Notice the log lines

14.12.2015 12:53 Data::RSA ERROR: Certificate validation failed 14.12.2015 12:53 Data::RSA ERROR: Trust chain did not complete to the known authority anchor. Errors: The signature of the certificate cannot be verified. (NotSignatureValid) 14.12.2015 12:53 Middleware::Authentication ERROR: Could not authenticate 14.12.2015 12:53 Middleware::Authentication ERROR: Certificate is not from FOG CA

@Tom-Elliott would be able to help you debug why your server certs are incorrect.