oh gosh for routers sometimes you have to access those settings. If you don't know how to access them it can be a pain. I am a bit nervous of linking any guides as it might cause more confusion. Hopefully a mod can offer clear help or Larian will release some kind of game linking guide.
http://portforward.com/english/routers/port_forwarding/One I found that has alot of different brands listed. has Dlink on it! Hope it helps *fingers crossed*
http://portforward.com/guides.htm^starting guides.
