I think the point is this is a server for nVidia Gamestream, which is designed to be a local streaming solution between your PC and a nVidia Shield device conne

I think the point is this is a server for nVidia Gamestream, which is designed to be a local streaming solution between your PC and a nVidia Shield device connected to your TV. Your ISP has nothing to do with the intended use of this software. I think it can be used over the internet, but that's not the normal use case.