The fact world.exe doesn't say anything about a "new connection" coming in leads me to believe that yes, you have a hardware or software firewall that's blocking that, or the NAT situation that Doodman referred to.
This is why I had you post on forums. I just now getting to read this due to a power outage (that I'll be posting about shortly to give you all a laugh, stand by), but I see other very qualified people have already answered
