Bought my second echo the other day for my work place. Turned on, got the ring but no sound, did set up but still no sound, reset and power cycle.... Guess what... No sound. Took it back to retailer after a troubleshooting session with amazon and lo and behold she piped up practically as soon as he turned it on. Took it back home, same problem. Does work through a Bluetooth speak and the ring does respond to commands. The only things that I can think of are that I use a shared Internet network (but don't know how this would affect it) and I had to use a different power lead (again, don't see how this would matter) it's driving me nuts! 🤪