I could use your help!

Until a couple of weeks ago, my wife’s and my Android phones worked well with Sonos. Then Sonos “upgraded” to the new app and our phone can’t connect with our system. For 2 weeks, I’ve tried everything to get it working: uninstalled/reinstalled app, restarted phones, signed out/signed in again on Sonos, and individually added each speaker to the app on each phone through the app. I thought I solved my problem with the last attempt until I closed the app. Next day, the app found no components and I was back to nothing! I even has several contacts with Sonos customer support and got to a “Level 2” Customer Experience person who replied to my email, “...there is nothing else that can be done to use the S2 app on mobile devices.” 

Can you please help?

Thanks in advance.