Seems that there is something wrong with IRC. According to Silentsword
here, domain seems to be expired. Admins are highlighted, hopefully it will be resolved as soon as possible.
Our apology for the inconvenience.
--Helepolis
Edit:Thanks forum users for the info! You can use the IP: 69.56.173.20 with default port 6667 to connect to IRC with your favourite client.
Edit2:Issue seems resolved for now. I am not getting any more input from people who cannot connect.