When trying to access the FSS Admin UI page, to launch the FSS UI, we are encountering the following error: "The security certificate presented by this website was issued for a different website's address. The security certificate presented by this website has expired or is not yet valid."
Single Sign On version: any
This message is actually external to Single Sign On, it is indicating that you are accessing the page which launches the FSS UI via a secure HTTPS connection, and the certificate installed on the web server is invalid for the hostname you are accessing, or has expired. Investigate the web server SSL configuration, or access the FSS UI page via a regular http connection, not https.