If you have XP then did you consider a system restore?

Were you refering to this patch which increases connections http://www.lvllord.de/?url=tools

Your problem sounds like a system issue. If you've deleted preferences, reinstalled Java & LW, then I'm not sure. How about a reformat.

You did configure your system didn't you for LW so it can connect through the firewalls re: XP firewall & UPnP settings for your modem/router? See Connection problems? Check here first! (click on link)