Hardwire a main speaker to your network 

So, my playlists are from my library stored on a nas drive

i just did what you described and it worked jo problem

not meant to piss you off!!,  wondering why mine is working and has,  since about the first or second week since the update

i have devices including an sub and play ones as well as amps etc.  all wifi connected

it was a learning curve but not super hard…

again you trying to offer something positive

While most users are now opting to go full WiFi with their systems, I chose to keep a few of my speakers hardwired to my network. I have 21 Sonos devices with 5 of them hardwired. I do not have any connection issues. While the app does present learning curve, I like it and am waiting for Sonos to get their act together a make the app/system great again. Get back to the company it was in the beginning. 
 

I like the initial promise of Sonos. An easy wireless system that works for everyone. They seem to have forgotten what it was invented to do for customers who loved and supported products from the start.

If you are using an iPhone, try the SonoPhone app.  It’s cheap and works well - kinda like the old S2 app did. ;)

@Peterjewitt , your description of the issue sounds like a duplicate IP address problem. 

Try unplugging all your Sonos devices from power, then reboot your router. Wait 2 minutes after rebooting your router before plugging back in your Sonos. Give them a couple of minutes to boot and connect before testing.

If this continues, I would recommend that you submit a system diagnostic within 10 minutes of experiencing this problem, and call Sonos Support to discuss it.

There may be information included in the diagnostic that will help Sonos pinpoint the issue and help you find a solution.

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.