@GD91 Thanks for investigation and update. It is really useful and was learning experience for me. Hopefully, the rest of your experience with Deco mesh will be the smooth sailing.

@GD91 I am out of ideas. If Satellite Deco reports 2.4GHz/5GHz link to Main Deco, it means its 2.4GHz hardware module working correctly. Why can't you find 2.4GHz from that Satellite Deco in WiFi...

@DecoManM5 You've made substantial investment buying five Deco M5s, but your choice was influenced by somewhat misleading marketing materials. In reality, you can get WiFi speed of just under 500Mbps...

@Samazar From main screen open More in the right bottom corner, and you'll see Network Optimization in the list.

@Samazar There is no manual override. The only option is to run Network Optimization from Deco app and hope it'll choose different channel. It might, but no guarantee. If current channel is not...

@vargeeza Yes, it is the same as M4. Here is screenshot from Amazon Canada with that Deco set: