I’ve got a new sonos Arc that is connected via HDMI/Wifi. I also have a sonos AMP connected to two ceiling speakers that is connected by Ethernet. When I play music to the AMP before connecting as surrounds, the speakers work normally. When I pair the AMP as “surrounds” to my ARC, and try to run true play, I get the “Lost Speaker” one of your speakers couldn’t be heard…” error. I ran a diagnostic and submitted it - 535901999 But can’t get through to support. My wireless setup is a ASUS Mesh netowork with Ethernet backhaul to each mesh node.
Best answer by Ken_GriffithsView original