I would recommend that you submit a system diagnostic, and call Sonos Support to discuss it, or post the diagnostic number here for a Community Moderator to pick up.

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, there are more options available beyond just the diagnostic analysis.

Hi

thanks.  
 

how do I sent the diagnostics to Sonos

i keep tapping on Sonos support but nothing happens.  Do I have to call ?? 

Click on the underlined words in my post.

I had a similar issue recently; support chat was great and system diagnostics (required ethernet connection to access device data) revealed a malfunctioning wifi chip

The Support link (and the others) that you get from the top-left = menu has been broken here for a long time, nobody seems interested in fixing it.

The link to Support below the Ask your question block works.

https://www.sonos.com/support?utm_source=ENsonoscommunity