I set in one room a speaker group of two echo shows so that if I say play music, on both device the music starts. After 1-2 week this settings is broken. I say on any of the two device "play music", but only on one will be the music played. And in the Alexa app I can not do anything. I can not deselect the speakers. It says network error!?!?! What? I can provide you screen shots. If I restart both device, then I can do the disconnect and then the connect. Interesting...how ever...this last then only for 1-2 weeks again. Annoying.