Hello @David-TP , I have had these decos for about 20 months. It was indeed an issue with the adapter; the adapter from another deco just worked fine. I am releieved :)

I have three X20 decos, one main and two slaves. Suddenly, the main deco lost power and when I connected it back, it is stuck in the yellow loop. The light stays on for about 60 seconds, then goes...