I'm currently having Internet issues at home, and was curious to know if anyone might have any knowledge about whether someone's Internet service provider can block an ISP from accessing the Internet and email, and what reasons they might have for it. We have one computer that's able to connect to the Internet through our router, but none of our other computers are able to. The computer in question is an old one, so I'm wondering if somehow an old IP address was stored in its memory when it was used several years back, which is what's allowing it on the Net. I'm not sure if a blocked IP is the problem, but it's the only thing I can think of that makes sense, why one computer would be allowed through and others not. I'm hoping that I'm only overreacting, and that it's nothing as ominous as that, but I thought I'd see if anyone had any input on this. I'm at a friend's house right now, and I'll be here for a while, if anyone's around who feels like tackling this.