I'm having the same problems. I have windows XP I have tired all the port set ups, but finally gave up and on the windows fire wire, I deleted the prefrence files, tired the new beta version and deleted limewire and reinstalled it. I am on a college/university network, but Limewire worked before, not very well, I could only download a song or two at a time but it worked. After Th windows SP2 it doesn't work. Any way I can get around my network from blocking me without having to change providers?