I was trying to connect to a remote server using Remote Desktop Connection
I got the warning message that there is no more available connection for Remote Desktop Connection.
This happens by default when two other connections exist to the remote server.
One way to connect to the remote server as a third connection is connecting as console using the Remote Desktop Connection.
To connect to a remote server using console connection with Remote Desktop Connection, you can type the following command in the RUN command prompt.
mstsc -v:servername -console
The Microsoft Terminal Services client will connect as a console connection to the server now.