desertPOD,
I see from one of your old posts that you've tried deleting the preferences folder before. Did you ever try changing the compatibility to Win NT or 2000? Right click the LW icon & give it a try (sorry if you have already tried that, can't remember seeing it in any of your old posts). Have you tried reverting back to an older version of LW (providing you have an old installer) to see what happens?
Your LW might've been seeing an internal firewall within your modem or router.
You'd need to enable UPnP or port forward in that case. There's info about those in the thread below, just in case your LW gets going again
Connection problems? Check here first!