Sonos One mic not working at all

I will add that I can' find any way to mute the mic. Is it just defective? I'm assuming, since I can't find any instructions to do so, just hitting the mic button *should* turn on the LED to show the mic is muted. Nothing happens with that either.

The LED is hardwired to the mic and is on when the mic is on, not when it is muted. That is a security feature so those who are a little leary of devices listening in always can tell when the mic is on.

So how do I mute it if I want? I don't really want to, but I want to see if I can try, because as it stands it acts like it is on mute.

The mic is turned off by physically pushing the mic button on the top of the device. There is no software on/off because of the privacy concerns.

Yeah, that's why I think I have a defective unit. That doesn't seem to do anything.

Have you properly set up the Alexa Voice Service in the Sonos controller app? The mic may not be enabled if you haven't done this.

This is separate from the Sonos skill in the Alexa app, which just allows directing Alexa to play music over Sonos speakers.

I just set up two Sonos Play:1 speakers to be used with Alexa. The setup and discovery all seemed to work fine. However, the microphone does not appear to be working in either unit (suggesting user error). Where should the microphone light appear on the unit and what does it look like? The only light appearing on my unit is the on/off light on the top of the unit.

I had the same issue and solved it by going through the Sonos app on my phone >Settings >Room Settings>Choose room and under Voice Services I was able to add Alexa. It was a bit strange as we did not need to go through this step with our other Sonos 1 and were close to returning the unit.

Thanks CVH i had the same issue, and it seems to be when you add a second Sonos 1

Try swiping your finger across the microphone button (right to left). This enables the microphone. The light should come on and stay on.