I’ve been looking into purchasing a game streaming device like a Chromecast or Shield so I can stream games from my PC to the TV. Wifi would not be feasible for this use so I would have to use ethernet. But I don’t want to run an ethernet cable along my whole apartment, and I have noticed that there are ethernet ports on the walls close to the TV and the PC in my room which are currently unused. Is there a way to connect two devices via ethernet, but instead of running a long cable between the two directly, I can connect each device to an unused ethernet port in the apartment and it would work like they were connected directly?