I am trying to connect 2 access points to a Asus RT-AC86U router. I am using my old RT-AC66U as an access point and it works great. Then I am at a dead end after that. I still have a weak are in my home, my main TV keeps buffering and losing connection. I have a Roku stick operating that TV. I swapped Roku sticks and still have the same problem. Whenever I try to connect a second access point or extender everything goes downhill. What am I doing wrong?