#assaultcube on Quakenet.org
If you don't have an irc client try http://assault.cubers.net/irc.html
Also try http://cubelister.sourceforge.net/, then follow the instructions on how to add the new masterserver.
If you don't have an irc client try http://assault.cubers.net/irc.html
Also try http://cubelister.sourceforge.net/, then follow the instructions on how to add the new masterserver.