Try this one! Using your browser go here: http://www3.limewire.com:6346/ The page should say ‘Your test worked!’. What happens when you go there?

I'm wondering if your modem doesn't use UPnP technology. If that's the case then perhaps you should forward a port. You can find Westell here on the far right column at bottom of page: http://www.portforward.com/routers.htm
Steps are: 1. Set up a Static IP (very important or it won't work!) 2. Forward port 6346 or other port you can find open. 3. Within LW: Manual port forward instructions & sample image & 2 posts after that.