@DecoDoesntWork "Update Assistant" is "upgrade utility" and "update tool" that they refer to. Download it from the link, extract the file, run it and it should present you with the login screen as...

Ray072 wrote @Alexandre. There are now only still a few spots in the house where the signal is poor. deco to deco wise. @Ray072 Do you mean you have Deco node(s) with Weak WiFi backhaul signal...

@DecoDoesntWork Try Method 3 from the following document: How to Update the Firmware of Deco

@AwfulJP You will need pair of regular powerline adapters. One will connect to Deco unit and another to TV. If you have TV (coax) cables in you house and you don't use them any longer and one of them...

@Wrayman Yes, it is smart switch that I was going to recommend. I have one Deco that I wanted to power off for the night. It has been 2 years since I started to use smart switch for that purpose - I...

@Wrayman I can give you workaround that I use to reboot single Deco unit at its own reboot schedule, if you are interested. It'll cost you about $15 to acquire necessary hardware from Amazon for that...