I cannot resolve irc.gamesurge.net either (or www.gamesurge.net), it would seem the problem began yesterday.
I'm not familiar with the network, so I can't provide any more information. You could use some of the ips given in the above netsplit.de page to attempt to connect.
the same has happned to me i cant connect to irc it's been doing this latly it it extremly fustrating when i open up my irc everything is fine only problem is it cant find me local host and my IP Adress plz anybody know ho to fic this plz speak up plz also other servers work fine just not gamesurge