Have you tried rebooting your router and phone?

Thanks, but Router isn’t the issue.  Wifi working fine for everything in the house and the Sonos app on my phone even indicates strong signal to the wifi network.

Once you’ve decided the issue must be e … ] or cannot be t … ], you are likely to be blindsided.

Forum here taught me this lesson a long time ago!

Me: Everything works but Sonos.

Forum: Reboot the router.

Me: But the router is fine.

Forum: Trust us, reboot it.

Me: So why did that fix my Sonos problem?

Forum: Excellent question, could be a lot of things but even not knowing, it works.

This is basically where I’m at.  Except my fix isn’t to reboot my router.  It’s across the room on a different power circuit.  I rebooted the TV, Sonos, Apple TV and Cable unit (all on the same power bar/surge protector).  After doing that, everything works.  Have no idea if Sonos or the TV is the problem.  Maybe next time, I’ll try rebooting just the TV.