i have a mains WiFi link in a room which is generally ok but struggles to stream on PS4 and get some audio lag on fire stick via WiFi. The adapter is on the opposite side of the room to the PS4 and tv so I was going to try running an Ethernet cable. Is there any way to run both the fire stick and PS4 off the same cable as I need to buy an Ethernet adapter for the fire stick m. Am I jointing too many times to make the signal any better than the WiFi connection?