TF260808: The Test Agent Installer service failed to update the status for this system onto the Team Foundation Server. Possible ...

TF260808: The Test Agent Installer service failed to update the status for this system onto the Team Foundation Server. Possible reasons include machine identifiers being invalid ie. test agent URI or lab operation ID or the operation having timed out on the server. Verify these parameters and retry the operation. 
Diagnostic Information: Test Controller Uri: %1, Test Agent Uri: %2%0