Problems with S1 app

I have a recurring issue with my S1 app

I have a gen 1 Play5 in my gym; it is the only Sonos product in there.  The remainder of my Sonos products are S2

Almost all the time now, when I open my S1 app on the phone, it doesn’t connect, I get the message at the top saying “Sonos found let’s connect”

As soon as I do this it connects to the S2 group and I have to reset the app.

If I try and connect to an existing network, all it does is connect to the S2 “network” and I go round in cirlces resetting and trying to connect again.

Eventually after random attempts, when “connecting to an existing network” I get the prompt to hit the two buttons on the device.  It then connects correctly

What is odd is that I can start the device playing without the app and that is fine

I have had various successes (although these may just be random), but not yet found a surefire way to resolve it

• Toggling wifi on and off (before and during the set up phase)
• Turning location services off
• waiting! (this seems to work)

The other strange thing is I have an ipad as a screen for my back trainer and I don’t have the same issues there.

Any help or suggestions will be gratefully received as it is very annoying when all I want to do it put on some tunes and workout!!

I would add I have checked the channel and S1 is on channel 11 and my S2 network is on channel 6

and finally, the gym is 10-15 metres away from any other Sonos products!

Moderator edit: combined posts again