I don't know why it's suddenly become a fashion, but please stop using the Notify Moderator button to get attention to your post. It's there to report ABUSIVE posts, not to get people to answer you.

Judging from your other post, I'd say your IT dept. is wrong, and has no idea what IRC is, and actually they DO have something blocking IRC. It's quite possibly not intentionally blocking IRC (which is why they may think there's nothing that would be), but the coincidence that you can connect at home but not at college would indicate such a situation. We can't really help you with that.