Please stop ‘resetting’ the Sonos speakers, at best it erases information Sonos might use to help the situation.

What kind of router/network do you have? Without a lot of detail, it’s hard to tell, but it seems as though different devices are on different subnets, something Sonos doesn’t handle. You might try turning off all network devices except the main router, and see if all the devices show back up. If so, there are likely changes that need to be made. 

Or, you could call Sonos Support directly to discuss it.

When you speak directly to the phone folks, they have tools at their disposal that will allow them to give you advice specific to your network and Sonos system.

thanks for reply, system was working fine with 3 products used alot with the phone and 2 play 1’s and sub mini rarely used, its the plays and sub that won’t connect, was holding out ringing as normally takes a long time wityh them.

router has been switched off and on to see if that helps, but no

If the Sonos devices aren’t unplugged/powered off while the router is rebooted, you’re not getting the full effect. 

I’d still recommend you call Sonos Support directly to discuss it.

Enable the “local network” permission for the app. This is a new feature of MacOS, and Sonos docs and support don’t know about it.

that did it