You can use the following procedure to verify that a federation server (weather it was configured as the first federation server in a federation server farm or added to a federation server farm) is operational; that is, that any client on the same network can reach a new federation server.
Membership in Users, Backup Operators, Power Users, Administrators or equivalent, on the local computer is the minimum required to complete this procedure.
Open a browser window and in the address bar, type the name, and then append it with federationmetadata/2007-06/federationmetadata.xml to browse to the federation service metadata endpoint. For example,https://fs.contoso.com/federationmetadata/2007-06/federationmetadata.xml .
If in your browser window you can see the federation server metadata without any SSL errors or warnings, your federation server is operational.
You can also browse to the AD FS sign-in page (your federation service name appended with adfs/ls/idpinitiatedsignon.htm, for example, https://fs.contoso.com/adfs/ls/idpinitiatedsignon.htm). This displays the AD FS sign-in page where you can sign in with domain administrator credentials.
Important Make sure to configure your browser settings to trust the federation server role by adding your federation service name (for example, https://fs.contoso.com) to the browser’s local intranet zone.