The error messages and possible solutions are explained here: https://support.sonos.com/s/article/2382?language=en_US
Try to wire the One directly to the router to make the update.
Yes sorry tried all those first and also plugged in with Ethernet cable. Any other ideas ?
Hi @Laurawak
Welcome to the Sonos Community!
Are you still having this problem?
If so, please try the following:
- Switch your WiFi router off for at least 30 seconds. Switch back on and wait about 5 minutes for internet access to return
- Switch off all Sonos devices apart from the Sonos One that doesn’t update (you can do this while waiting for WiFi to return)
- Connect the Sonos One to the router with an ethernet cable (to a port labelled LAN, Ethernet or Network)
- Try the update again. If it fails, try doing the update from another controller, if you have one. If you have another ethernet cable, please try that too.
If the above steps don’t help, please get in touch with our technical support team for a resolution.