it would appear that at least for the time being irc://gigenet.il.us.gamesurge.net:6668 is down. to correct this, go into the settings above where you typed in gigenet.il.us.gamesurge.net/6668 and change that to gameservers.nj.us.gamesurge.net/6668 (a new server in the gamesurge network).
enjoy!