I have a Meridian PBX that I connect to from my desk using a Putty connection software through a terminal server where we have a port configured for the PBX. The problem that I'm having is that I keep loosing connection to the PBX and our third level support had to change the connection from Port 0 to Port 1, and he mentioned that the port was disabled. What would cause this to happen and how would I log into the PBX to correct this myself?