So after disabling Private (dynamic) MAC address in all of four iPhones, seems problems went away. My only explanation is as people were moving within the houses, they were connecting and...

Day I dunno what so both zyxel and deco stopped working. After restarting both, Zyxel started working ok but deco refused, even after 3 restarts. Then later it started and is operational. So now I am...

DAY 51... Currently everything is set to 2.4Ghz only. Including Zyxel, where I was also able to set the channel width to 20Mhz. Zyxel network is set to channel 1 and Deco was automatically...

@David-TP hi David, still even without WR840, which is only used for TV, all the clients in this part of house are connected to the Deco mesh. Why was the 1.5.0 pulled out from the official support?

Still having difficulties. Now my question would be, isn't there anything TP-LINK would do about it? My friend recently bought 3pack E4 or M4 - not sure. He is having very similar difficulties....

@David-TP thanks for your reply. I have changed/updated the network topology but still with difficulties. Now also figuring our with Orange if they can find out. It was working like a charm, for 5...