-Are you using a copy of mIRC downloaded from
www.mirc.com ? or some illegitimate one you got someplace else with scripts added?
-check out the first paragraph at
http://www.mirc.com/news.html and download the latest
servers.ini. its hard to keep up with all the server changes on various networks, and the best place to check is the networks website list of current servers.
-also check out the
unable to connect thread - considering that network has a lot of illegal file sharing going on, i'd also run at least a couple virus scans just to be on the safe side. see
the antivirus resource thread 
