When signing in to a desktop on the TTU domain you get the following error:
The security database on the server does not have a computer account for this workstation trust relationship.
The computer does not have an active connection to the TTUnet network.
The computer into which you are attempting to sign in was deleted from the TTU domain in Active Directory.
CAUTION: Try this solution first. If this does not work, then try Solution #2.
Verify that the computer is connected to TTUnet via a wired, wireless, or VPN connection.
You are able to sign in to the computer again.