What is the IRC Network you trying to connect on? What IRC server you using to get on this IRC Network?
What software firewall you use? Does it have Application filtering?
Reason why I ask, I want you to do in Command Prompt (CMD in Start\Runů) and type; nslookup <server named addy>
So if you using application filtering firewall make sure you authorize nslookup.
Once doing nslookup paste the end results here for me to see, thanks.
Kn0wledge Is Thee P0wer!!!!