Try something like:

/server irc.undernet.org

or

/server irc.efnet.net

You can also try connecting to the IP address of the server. Some ISPs may block IRC by name, but allow it if you use the IP. For example, if I want to use IRC on my Verizon phone, I have to connect using the IP address or it gets blocked by Verizon.


Invision Support
#Invision on irc.irchighway.net