Finding and Enabling the ADFS Service Endpoint URL Path
To find and enable the ADFS service endpoint URL path
Access AD FS 2.0 Management Console (Windows Start menu > All Programs > Administrative Tools > AD FS 2.0 Management).
In AD FS 2.0 Management Console, under Services, select Endpoints.
Find the endpoint by looking at the Url Path column.
When the endpoint is disabled, right-click it, and then select Enable.