The page requires a valid SSL client certificate

Your client certificate was revoked, or the revocation status could not be determined. 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 Web site administrator to establish to establish client certificate permissions or to obtain a new certificate.

HTTP Error 403.13 - Forbidden: Client certificate has been revoked on the Web server.
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, Certificate Revocation Lists, Enabling Client Certificates, and About Custom Error Messages.