I bought the coax network adapter kit (2 Actiontec Model ecb2500c), the one adapter I have hooked to my modem (Comcast, in my bedroom), coax from the wall into the coax in of the Actiontec adapter, then coax out to the modem itself. I then have the Ethernet plugged into a port from my modem into the Actiontec adapter. All lights are good on the Actiontec but the coax light. The other adapter I have in the living room with the coax from the wall into the adapter coax in. Then I have an Ethernet cable from the adapter to the Xbox One (once again all lights on but the coax light). I can download updates, browse on internet explorer, look the the store (apps and games) and even download a game but when I try to play a multiplayer game it says I'm not connected to the network (tried titanfall, battlefield 4 and call of duty ghosts). I'm really confused on how I could do everything but play multiplayer. Any help would be appreciated! Thanks for the help!