All of a sudden when admin tries to remote into another machine and log in using there username and password the machine starts to log in then an error message pops up on the admin workstation:
"The session is terminated. The operation is disabled for the new logged in to target machine."

Client machine does finished logging in and the only what to get admin off of it is to have some one go to that machine and reboot the machine.

We are also running our clients with a zen shell. When admin logs in the shell is turned off. When admin tries to remote into a machine with a user that uses the zen shell the login goes through and admin can stay logged in.

Does anyone have any thoughts?