There might be several issues going on, it is hard to tell from your post if it is one specific one. 
 

The first thing I’d do is log into my account at www.sonos.com, and check the location / address to ensure it is set properly. Sonos does a lot of filtering based on that data, and changes made there can take up to 24 hours, I’m told, to take effect.

Not really certain what ‘topic 3d’ means, much less ‘etc, etc’. A network refresh would be my next step. Unplug all your Sonos devices from power, then reboot your router. Wait two minutes, then plug back in your Sonos devices. Wait two more minutes, then check for updates to you Sonos, whether you’re running S1 or S2. 

Finally, if neither of those change anything, I would recommend that you submit a system diagnostic within 10 minutes of experiencing this problem, and call Sonos Support to discuss it. Don’t post the resulting diagnostic number here, they get sensitive about GDPR.

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 Support staff, they have tools at their disposal that will allow them to give you advice specific to your network and Sonos system.

Thanks Bruce, this is something have not done so far, will try as you suggested. 

I’d first try reauthorising Sonos Radio in the app.