Thread:Jekkers/@comment-25035274-20140821133425/@comment-25035274-20140821220724

Turn off his modem and restart it. Take his laptop to a different establishment with free wi-fi. Sign on from a friend's home. Any number of ways. Anyone on a dial-up connection automatically gets a new IP address every time they open their internet connection unless they've specifically paid for static IP addressing.

And someone claiming to be a n00b, who actually isn't, would know all that already. And/or might be using proxies.