I have found a way to connect them and add them to the Nest app. I went upstairs with the protect which was connected and started to add the other ones. Because I also have a Deco in the bedroom theu...

Hi I use 3 Nest protects several years without problems. Now I have 6 deco x20 for internet with Delta. Now 2 of them are offline so I wanted to connect them, without succes so I resetted them to...