Why does xfinity tv online keep shutting off my computer? I can watch hours of netflix, youtube, levidia, ect., but the moment I try to watch live tv, I get just a little bit and then my copter cuts off. Its very frustrating as my computer is my tv since my tv broke, and I pay my bill like I'm supposed to do yet I'm not getting what I pay for if I can only watch 15 minutes or so at a time. Someone please help me understand why this keeps happening!!!!