Hi zdevon,
You've contacted your ISP & seem to be fairly confident that they're not causing you a problem. So the firewall issue must be coming from within your setup... logically it's either a software firewall or an internal firewall within a modem or router. I asked you twice in your earlier thread to give your system details but you didn't answer all of my questions!
http://www.gnutellaforums.com/showthread.php?t=58333

Hobo asked you again in this thread to answer all previous questions & still you didn't! How on earth can anybody help you if you don't give information? If LW is detecting a firewall from within your modem or router, you will have to tell us what brand & model you have. There is no crystal ball. Are you using just the XP firewall or something else (like ZoneAlarm or Norton)? Are we supposed to guess?

If you're getting all green connection bars, just not 'turbo', I would worry about that later. At least you have a reasonable connection... concentrate on getting the firewall off for now.