I am having similar problems suddenly (was OK yesterday). Am running 10.3.3 via apple internal modem. Installed some new software on my machine a couple of days ago and now LW seems to have gone haywire! Not too sure if this is a coincidence. Internet connect shows a connection, but LW says can't connect and also having connection problems through IE and Safari. Have now set up gnutella connection through Firewall so hope this will help. Also LW player suddenly not working either and is checked in preferences. Not too sure if I should just dump LW and re-install.
HELP!!!