I am having a horrendous time with the new M9 Plus because of this limited functionality, it's so frustrating going to a peice of kit as fundamental as a router than you can't configure. My...

I have this same issue, I have two Deco M9 units and both 2.4 and 5ghz frequencies enabled. When in the same room as my Main Deco unit and not moving (connected to a strong 5ghz channel), I have...