Do this test: Bug Report instructions & sample image Is the result True/False? If false then I have a suspicion you might need to do port forwarding. AFAIK D-Links don't have UPnP ability.

If that's the case then the steps to port forwarding need to be done in this order:
1. Set up a static ip (you can get tips how to do this for Mac OSX in the thread link in point 3 below.)
2. Forward a Port (use 6346) http://www.portforward.com/routers.htm (Do one for each of TCP & UDP)
3. Within LW: Manual port forward instructions & sample image & 2 posts after that.

BTW the forum doesn't normally approve of email addresses as user names. We may need to set you up with a different user name. You should send me a pm regarding a prefered forum username.