Are there still issues adding speakers to the system? I’m still having trouble adding a Sonos One Gen2 to my system. It disconnected and I could not get it back up so I reset the speaker thinking I’d re-add it but it keeps saying it’s not registered. 
 

I’ve searched and tried transferring the system (to the same email), resetting the app, and logging out/in but none of these methods work. 
 

I tried creating a new account to add the speaker there and that worked. But I just can’t get it back on my normal system.