Shit, ask4? I think they were the isp when I was at uni about a decade ago. I’m sorry to hear they’re still kicking.

If it’s still the same as back then, all the dorms are essentially on the same lan and they’re using Mac filtering at the gateway. Since this was before Https became ubiquitous this meant you could sniff other people’s http requests.

What you do (what we did) was sign up with one device and setup a proxy on it. I think we used squid-cache. But anything that will masquerade the traffic as coming from that one device should do the trick.