@JasperCat Also updated another step for clarity: "Power on Main Deco. You should have it connected by Ethernet cable to Xfinity router."

@JasperCat I should have worded it better. I meant to say: "Disable WiFi on Xfinity router." No other changes are necessary on Xfinity, and do not change Xfinity to bridge mode. It will still be...

RomseyGuy wrote @Alexandre. The network optimisation has zero effect on 5Ghz side of things AFAICT @RomseyGuy My Deco WiFi 5GHz channel changed from 48 to 44 some time in last three months. WiFi...

@JasperCat If you have seen all three nodes online in Deco app and they have green LED, the rest should be easy. Power on Main Deco. You should have it connected by Ethernet cable to Xfinity router....

JasperCat wrote @Alexandre. Oh wow. So DON'T but the Xfinity modem/router into bridge mode? Won't the two routers fight? @JasperCat Do not put Xfinity into bridge mode. I am guiding you through the...

JasperCat wrote @Alexandre. The app is wiped clean of my previous set-up. It doesn't see anything and prompts to start the set-up the again. @JasperCat Try set up again. This time, when asked, select...