irc.rizon.net has now banned 'bitcoin' clients. I will be removing the irc code in version 1.4. It will be replaced by seed nodes.
In the mean time you can stop using irc by starting with switch -irc=0. If you need a node to connect to please PM or ask.
If you have the know how and desire to run a seed node, please let me know. I will pay a nice bounty for it, but you have to get it up.
Thanks!
I contacted you, not sure about the seednode, how it works, and how I can allow it, but if it's the same as the "addnode" strategy, this should work.
Also, changing the IRCd server can be nice.
I'm running arround 20 differents coins, and I'm always blacklisted by this irc.rizon.net because of too many connexion by one IP address.