Anyone who is using Windows 2000 Terminal Services for remote administration has inevitably run into the two simultaneous connections limit. I've noticed that most people seem to think they have to take a long and painful walk all the way to the server room, and physically log on to the server in order to reset unwanted connections. Good news! It's not necessary!
Simply install the remote administration tools (ADMINPAK.MSI, found in the SYSTEM32 directory on all your servers) on your desktop computer.
When you get the error message that you have exceeded the maximum number of allowed connections: