Have you made sure that the XP firewall is off? Double check that & also check your ghostwall config to make sure LW's given full access.

The Westell 6100 has an internal firewall. AFAIK your model's made specifically for BellSouth & so it might be slightly different to the standard 6100
If it supports UPnP, enable this within the router & choose the UPnP option within LW's tools > options > advanced > firewall config.
If that doesn't help, you can try port forwarding. Check the site below...there are step by step instructions.
http://www.portforward.com/english/r...0/Limewire.htm


And in case those instructions don't work, or pages don't look the same as your router:
http://www.dslreports.com/faq/7074