Well something's blocking your access to LW's default port...possibly your ISP.
Have you ever tried to use any other p2p apps & if so, did you have problems?
A couple of people have had trouble with Ygnition. Have a look at the article below (scroll down to post from KW33D), it suggests they're traffic shaping.
http://www.dslreports.com/comments/2599
Maybe you should give their help desk a call, try & find out if they're shaping or blocking you. You could try using a different port, see the suggestions below
http://www.gnutellaforums.com/showpo...00&postcount=2
If you do change ports, you'll also have to change port numbers allowed within your firewall.
There's not much point in trying to sort out your firewall until you know that you'll be able to use LW