So what appears to be a common issue I experience is that if I quit the Sonos app on my MacBook Air (Sequoia 15.5), it is a roll of the dice if I can reopen the app and for it to reconnect to my system (2 x Symfonisk speakers in other rooms).
It turns out the workaround is to go into System Settings, Privacy & Security, Local Area Network and then to toggle off the setting assigned to Sonos then turn it back on. THEN it will let me use the controller of my system. I know it’s not the speakers themselves as they work perfectly well via the app on my phone.
Is anyone else experiencing this and why isnt Sonos fixing this? I sent a diagnostics report to Technical support and the response was that everything is ok.