I have a Playbar, Sonos Five and four Sonos Ones. They have always worked seamlessly but now there are always connection issues and the app doesn't see certain speakers. I try all the fixes (turning on and off the router, wifi on phone, speakers, etc.) And it is a lottery. Sometimes my app won't connect when I open it. I am stumped as nothing with my network has changed and am a loss. Any help would be great.