Answered
Sonos S1 controller isn't compatible with your system
I have my old Sonos products on the S1 app and my new products on the S2 app. The S1 app is now giving me the above error message and asking me to upgrade to the S2 app. When I click on ‘About my system’ the S1 app only shows the products linked to the S2 app and doesn’t recognise the old Sonos products
