Already on the help file
[quote:87d01]Also, you'll be warned if you try to connect to a server when another Rcon Delator is monitoring it so that it doesn't get overloaded (there's really not benefit on having two rcon clients polling the same server, anyways). However, this can cause a problem when the connection between server and Delator gets lost for some reason.
If you keep getting the "Already monitored" error and you're sure no other Rcon Delator is polling the server, type "set sv_delator 0" on the server console (you can also use RconDelator Mini Console for this).[/quote:87d01]