Can't connect to irc(using wookie)

The problem is that suddenly the other day,i was about to fire up wookie again. But now it suddenly won't connect to anything. Try to connect to amigaworld,and after some time i get a message that it can't connect. Anyone else having this problem too or is it something wrong with my stuff?
Also won't connect to sabremsn anylonger too. No idea what has happened.

@Antique

Try to connect with another client.
Try to connect to other servers/networks.
If it still fails, enter the web interface of your router and check if you have blocked the appropriate ports. (6667 for IRC)