Symptom
If you enter the console at the server, the Server Admin Agent does not respond to Server Admin requests, and an alert box with this message appears at any connected Server Admin workstation:
"The connection to the Server Admin Agent at <domain name or IP address> has been lost. Please try to reconnect later."
Solution
Exit the Console at the server, and the Server Admin Agent will allow Server Admin to reconnect.
This issue with Server Admin is resolved by Mac OS X Server 10.1 and later. However, you still should not leave the server at the Console, because the Window Server process does not run when the server is at the Console. Other server processes rely on Window Server.