Symptoms:

• A Sonos device (in my case a Connect) says “not registered”

• Next page says that this produce needs to be linked to your Sonos account

• Immediately it returns with “Setup problem”.  It suggests checking your Internet connection and making sure all products are plugged in and checking time settings on the mobile device.  But none of these work.

This one is hard to track down and there’s a thread that’s over 3 years old with 19,000 views.  So I take it others are experiencing this issue:

To make a long story short, here is what worked for me:

1. Unplug all other Sonos’es in the house

2. Connect the offending Sonos directly to the router via Ethernet

3. Reboot the router for good measure

4. Put your hands in the air and turn your body 3 times, chanting, “Sonos Gods help me please”

5. Rerunning the setup should now work (but only if you truly believe)

6. Now disconnect the Ethernet.  In my case, it again complained that the device was not registered.  But the link step then succeeded.

Enjoy!

- Philip

PS: Sonos Gods, please give this error page in the UI an error code, and add this info to thy knowledgeable