@David-TP What if you use the Wi-Fi Interference tool in the Deco Lab? Even after "Network Optimization" is run and says "perfect," the Wi-Fi Interference tool in the Deco Lab almost always shows...

Some of us do need Channel selection as well. The "Optimization" for the Deco M5 always "perfect." However, my Decos almost always choose the same channel as my next door neighbor. Combined with the...

Same with my IoT devices.