I’m no doubt repeating the same question. Can anyone assist definitively - I have a S1 controlled system; a One, a One SL and a Connect:Amp (1st generation). I’ve just purchased 2 more One SL, but the S1 app tells me I need to use them only with S2 app (even though I have a One SL on the S1 ‘system’ already.
I’ve tried the downgrade with S2 (as Sonos suggests), but it won’t even find it, unless I completely set them up (on another wifi to avoid it messing up the S1 group), and as soon as they are set up, the downgrade option is greyed out.
Any definitive help out there?