iPrimus, I'm not sure but I think that means you're a local (to me); you also use the same connection speed as me.

From what I see HERE & HERE your modem uses UPnp (Universal Plug & Play.) Which means port forwarding such as THIS shouldn't be necessary. However for net games, you might need to do port forwarding depending on the game I guess. (LW uses port 6346 by default.)

I'm not sure but changing from your proxy might have caused some issues, I don't know.
If you want to connect via proxy then you'll need to make adjustments within LW. Here's a few proxy instructions if you want to head that way (a bit of work though): (1.) A Fix for those whose ISP's block Limewire pages 1 & 2 which has a link to alternative instructions.
(2) Another Insight proxy solution (3) http proxies
(4) A Successful http Proxy Solution

* Do this simple test for us. Using your browser go here: http://www3.limewire.com:6346/ The page should say 'Your test worked!'. What happens when you go there?