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The terminal server has exceeded the maximum number of allowed connections

If you are using Microsoft’s Remote Desktop utility over a network to connect to other remote Windows machines then you must have encountered an error message while connecting to the machine -

“The terminal server has exceeded the maximum number of allowed connections”

This problem usually occurs due to following reasons :
  1. In Windows, normally  only 2 users at time can connect to the same  remote windows machine, thus if a third user wants to connect to the same remote windows machine then he will get this error.
  2. After using the remote desktop connection on a remote windows machine, users normally disconnects the remote connection just by clicking on the cross button coming up on their screen. This practice only closes the remote desktop window opened on the user’s screen but it doesn’t closes the session made on that remote windows machine for the user. Thus, user’s session is still running although he has closed the window.  This leads to a situation where no user is currently accessing the remote windows machine but when anyone try to connect to it, we get the above error.  We should always log off form the remote machine  instead of just clicking the cross button.

Even in this situation, Remote Desktop Connection utility have a mechanism to connect remotely to the windows machine,  kill the existing remote connections and even do our work on that remote system. Executing the Remote Desktop Connection utility with some parameters provides a third connection to the remote windows system :

mstsc -v: x.x.x.x /f -console

Replace the x.x.x.x with the IP Address of the remote system and execute the above command through Start -> Run.

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