What is IPControl_UPnP_RemoteService on nVidia Shield TV?

This appeared in the most recent nVidia Shield TV update (8.1?)
It’s clearly a controller of some kind, but it’s neither the remote nor the gamepad.
It’s causing my app some confusion as it’s reporting as an extra, non-existent gamepad which it’s default assigning to a somewhat confused but definitely existent player.
The name suggests some kind of IP remote?
I’m going to block it to death, obviously, but I’d like to know what it is I’m disabling.