Thanks everyone. I will try these two things out, and let you know if I still dont come right.

Same problem for me. Mine are stuck on 2.4ghz

I have 3 M4's setup: Hallway (main), Bedroom (1 floor up), 2ndFloor (2 floors up). The Deco app says that Bedroom and 2ndFloor have a signal source of 2.4ghz.. How do I change the signal source to...

Ok I reinstalled the firmware on all the devices (installed the firmware twice) using the upgrade tool, and now all the devices are on the same (latest) firmware, and the network looks good. Holding...

@David-TP Thanks for this. I downloaded the software and .bin on my laptop, and deployed the new firmware. So far so good and I csn see which other access pointsthey are routing through.. Except two...

@Alexandre. Thanks very much for the reply, but I cannot seem to see what you are suggesting. I open Deco app Touch the Globe I see the list of all Deco nodes in the Deco mesh I touch the Deco node...