Alexa Skills lost

The only thing I can suggest is to follow the steps in the answer to this post but I've not personally had this issue before, so I'm not sure if your physical location might also be an influence:

https://en.community.sonos.com/amazon-alexa-and-sonos-229102/sonos-one-not-responding-to-alexa-comands-6793239

Hi all,

the issue apparently comes from Sonos selecting the Alexa language for your device based on your mobile phone settings. If you have a different mobile phone setting as language (in my case English US) than your amazon account (in my case German) the bespoke issue comes up. The language cannot be selected through Sonos App and is pre-set by the mobile phone settings --> Probably Sonos should fix that and instead ask the user which language to choose when initializing the device with Amazon Alexa or even better check automatically language of Amazon account and set language for voice recognition accordingly.

Following steps worked for me:

# Remove current Alexa set up for SonosOne:
- In Alexa account, select 'Settings'
- Select your device and 'Deregister' at the bottom
- In the Sonos app, select 'Settings', then 'Rooms' and then choose the room with your SonosOne
- Select Amazon Alexa and disable Alexa
- Power down the two Sonos 1's and then switch them back on and wait for them to boot;

# New installation
- Set your language of your phone to the right language (in my case German (Germany)).
- Install Voice recognition again with Alexa

--> Now should be possible to add the skill Sonos in Alexa :)

Cheers,
Joscha

FYI, physical location is NOT an issue... 😉