Article ID: 122539, created on Jul 31, 2014, last review on Mar 31, 2016

  • Applies to:
  • Plesk Automation 11.5
  • Plesk


While accessing Plesk web interface I am getting the following error in the browser:

Secure Connection Failed
An error occurred during a connection to x.x.x.x:8443. Issuer certificate is invalid. (Error code: sec_error_ca_cert_invalid)


One of the possible root causes may be that Plesk certificate differs from the one saved in the browser certificate store.


Remove old certificates from the browser certificate storage.

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Error code: sec_error_ca_cert_invalid

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