I currently have a TL-PA9020P KIT. I need another powerline adapter to another floor. May be this if I want to have wifi and also one gigabit port, TL-WPA7510 KIT?
(1) On the PA9020P, I am using one ethernet port to the smart TV. and the other adapter I have it hook up to the router. If I hook up one more device, do I need to hok upp another ethernet to the router?
(2) For the TL-WPA7510, do I have to pair them separately? If yes, then it will be 4 wall units being occupied by the 4 adapters. If no, that means I only need one of the two in the box?