@Seyeclops Deco app can't update M9 that has firmware 1.2.*. Instead of giving meaningful error message such as "unable to update," Deco app will tell that system is up to date. It is Deco app bug....

@Seyeclops I have M9s in my Deco mesh and I can reassure you that every Satellite Deco shows devices connected to it. Main Deco only shows devices connected to Main Deco. I will need additional...

@AndrewF AndrewF wrote Thanks, I had already followed the advice in this doc before posting. I think i might have to send them back and drill hole for a cable sadly If you have read that document you...

@TDawgSmitty Deco M5 has gigabit Ethernet ports. Cat 5E or Cat 6 Ethernet cables should be sufficient. I use Cat 5E Ethernet cables with M5s at my house.

@AndrewF Start with this FAQ document from TP-Link: General Questions about the Powerline or PLC Backhaul Feature of Deco

@ImaginaryTango You can use Deco app to create and manage multiple Deco meshes, but it is for WiFi mesh at your house and, for example, at cottage. Not for running two Deco meshes in AP mode on the...