When you connect to studio64.yi.org, it actually forwards you to whichever of these servers has the lightest load:
irc.gccafe.com
irc.opa-ages.com
irc.shadow-corp.com
(There are probably a couple more I can't remember.)
If you're using mIRC or the Java applet or whatever, you can type "/server " then one of the servers above to switch if you have problems connecting to studio64.yi.org.