I just bought a new modem/router and powerline adapter kit. The modem/router is a Netgear (C6250-100NAS) and the powerline kit is a TP-Link (TL-PA7020v2). The problem I am facing is that everything (both wifi and wired connections) works perfectly until I plug in a second ethernet cable from the powerline adapter into the modem/router then the internet completely stops working and I get pulsing 2.4ghz and 5ghz lights while the LAN light flickers constantly. As soon as I unplug any one of the two ethernets connected, the internet seems to comes back to life almost instantly. It doesn't matter which cable I am using or port I am plugging into, so long as I have 2 in the router from the powerline the internet stops after a couple of seconds. Also I have made sure the powerline adapter does work in my house because I can connect my Xbox One with one of the connections upstairs. If someone could possibly help with this situation that would be greatly appreciated, I bought the powerline adapter specifically to be able use both ports for a gaming console and computer. Thanks!