@David-TP where can i find the official release for the 1.6.x update for my deco m9 plus?

I have 3 Deco M9 Plus in the living room, second floor and third floor, most of my devices will connect to the second floor hub and not to the hub in the living room. The main hub is on the second...

Is this the signal strength between the decos? Does this mean that the deco kantoor (office) has a low signal strength with the deco woonkamer (living room)?

@TP-Link Will this update also come with the deco app?

@TP-Link_Deco Is there a stable version for the update for WPA2?