http://www.limewire.com/english/content/firewalls.shtml

Not sure how to add as a link.
It is the XP firewall.
Now my wall is gone, don't know what i did, something to do with the listening port. i switched to manual port instead of UPnP, then switched back to UPnP, then the port number was changed auto. I went back to my firewall setting, went to the 2 gnutella selections and entered the 127.0.0.1 IP address and now the wall is gone.?Beats me! I do live in an apartment. I connect on unsecured wireless networks, or whichever network the card picks up. No wires going anywhere except my headphones, wireless internet out of the box. I have a Dell Inspiron E1405, wireless comes standard. The signal isnt the best in my location, but i go just go up to the front building (100 feet),different network i connect at an always stable speed of 54Mbps.I'm right now at 24Mbps.However if the network is a secured network, I can't connect without the WEP. {Had to edit this in, i guess i did the link think correctly after all. Sorry for the lack of info!}