802.1x user authentication failes when a RDS connection comes in


Symptoms


End user uses remote desktop connection to logon to a 802.1x secured Windows 7 machine that is configured user authentication only. After about one minute, the connection is lost, and the user are unable to re-establish the remote connection. A local (console)logon may resolve the issue.

Cause


When 802.1x authentication mode is configured to user authentication, the supplicant fails to query the user token in the remote desktop session.

Resolution


To make remote desktop connection works with 802.1x authentication, we must user computer authentication or "User or computer authentication"