The page requires a valid SSL client certificate

Your client certificate has expired or is not yet valid. A Secure Sockets Layer (SSL) client certificate is used for identifying you as a valid user of the resource.

Please try the following:

  • Contact the site administrator to establish client certificate permissions.
  • If you already have a valid client certificate, use your Web browser's security features to ensure that your client certificate is installed properly. (Some Web browsers refer to client certificates as browser or personal certificates.)
  • Change your client certificate and click the Refresh button, if appropriate.

HTTP Error 403.17 - Forbidden: Client certificate has expired or is not yet valid.
Internet Information Services (IIS)


Technical Information (for support personnel)

  • Go to Microsoft Product Support Services and perform a title search for the words HTTP and 403.
  • Open IIS Help, which is accessible in IIS Manager (inetmgr), and search for topics titled About Certificates, and About Custom Error Messages.