But not in the usual way of: cmd -> services.msc -> Connect to another computer...
He told me he hadn't used a 3rd party software (of which I'm doubtful, since he has been hanging around in the deepweb), included is a picture of a menu he used while doing it. He called me on Skype before disabling it, and while the call was still on, the internet connection dropped. That's about it.
call him on the phone and ask him to fix it. i wouldn't necessarily post pics of your IP address.
There's nothing to revert, the internet connection was just disabled for a short while, and I want to know how he did it to take precautions to keep him, or anyone else, from doing it again.
I changed the picture, not that it actually mattered, though, I've changed the IP address by now.