Sorry to hear you're still having problems. This may or may not make a difference but try deleting your LW Preferences folder whilst LW is closed. But before you do, make a note of your LW settings b/c you'll need to reset your LW option settings including Force IP (instructions in my earlier 2nd post.)

LW Preferences folder is called .limewire & found here: C:/Documents And Settings/your_username/.limewire