This may by common knowledge but I wanted to share, so I use EERO for wireless in my home ( 3 unit mesh) and I’ll been having Sonos disconnect/ missing device issues..11 device system.. at random something is gone.. then back.. utterly annoying… managed to see a note somewhere to plug a single Sonos unit via Ethernet cable into the primary EERO unit, in my case right near the cable modem, super easy, follow by turning off wireless on that one speaker, 3 weeks later I haven’t had one issue since, no drop outs… no missing speakers… no app lockups .. again this my be we’ll known but this simple solve turned around my system, I hope it does the same for you.
-Todd