Terminal Connections
If you use Microsoft Terminal Services, every once in a while you see the above message. The problem is that it doesn't tell the administrator any solution to fix this problem. In fact, the Administrator isn't even notified that a problem exists! Users have to contact an Administrator of the machine to let them know that they can't get access using RDC.
A more effective solution would be to "ask for the order", let the administrators know that the Remote Desktop connections exceeded the licenses and what steps they need to do to can get new licenses.
If you do get the above message and you want more Microsoft Remote Desktop Licenses, check out this technet. An alternative solution would be to look an Linux solutions, including Apple Remote Destop, which offers unlimited icenses.