Well I think we need to try this experiment....I searched google and found that if you connect to just the modem for downloading and uploading in can effect your download speeds...
http://homepage.ntlworld.com/robin.d...ps/downup.html
Now I reckon plug your router back in and Port Forward it and you will see a huge difference...
http://www.portforward.com/english/r...4/Limewire.htm