i had this problem with aol sometimes i would refresh the servers and they would all be red and other times it would be fine and have green and yellow servers, was annoying when i wanted to play and couldnt. Changed to sky a few months ago and almost all servers are green or yellow all the time. So im guessing its ur isp, ring them an ask them to turn interleaving off http://www.dslreports.com/shownews/184 worth a try.