At Ease: Loops Back To The Login Screen

This article describes an At Ease login situation and provides workarounds.
Some users have found that when they attempt to login to At Ease, it loops back to the main At Ease login window. They are able to choose a user name and workgroup but after a short delay, the main login window appears again.
There are some known reasons for this behavior:
The following suggestions have been reported as solutions to this behavior but have not been verified by Apple Technical Support.
Published Date: Feb 18, 2012