You can follow the links I gave which (sorry) follow onto other links which give a suggestion how somebody else solved their problem (Ne0teric) directly here:
http://www.gnutellaforums.com/showth...threadid=32882
They are still using this solution successfully. They temporarily had an issue with LW 4.4 & reverted to 4.2.6 but have since sorted the issue with 4.4 They're not sure why they initially had that issue but it still works for them. As mentioned Zoomtown can also do better deals & don't block/filter but it's up to you which way you go. You can always pm Ne0teric if you have any problems taking their direction.
DaSlug you can configure your router here using Port 6346:
http://www.portforward.com/routers.htm & look for Linksys at the top-middle-right I think.
If your router uses UPnP technology then under LW's Tools>Options>Advanced>Firewalls select UPnP & press Apply. If not use that tech. then manual Force IP as in here:
Force IP instructions & sample image & two posts underneath that. But remember that if you do forward a port you MUST 1st set up a Static IP. Instructions are at the portforwrd.com site.