Instead of using the round robin address try connecting to one of the servers instead.
/server coyote.tx.us.starchat.net
Just tried this by typing the above from starlink-irc which connects me to IRC. It says:
* Disconnected.
* Connecting to coyote.tx.us.starchat.net (7000)
* Unable to connect to server (Connection timed out)
* Connect retry #1 to coyote.tx.us.starchat.net (6668)
* Unable to connect to server (Connection timed out)
* Connect retry #2 to coyote.tx.us.starchat.net (6669) ...