Can you give us more information about your setup like what speakers are you using when Spotify drops, what sound bar are you using, and what model TV do you have?

SamsungTV. Living Room has Playbar, Sub and two Sonos 1.

Have you run TV Setup in the Sonos app? Have you checked to make sure the optical cable has been fully inserted into the Playbar and optical port on the TV? Also be sure the caps have been removed on each end of the optical cable.

Is TV Autoplay enabled under the Playbar’s settings in the Sonos app? Have you set the audio settings on the TV to Optical?

Can’t even get into settings now

Now in settings.

Lining Room now showing ‘no content’

 Yeah… That’s not right.  There should at least be a volume slider showing a Mute on the left and the last numerical volume level used on the right.

 Can you take a screenshot of your system with the Settings (gear icon) open?

 So when you try to play something on the Living Room it does not play?  The “No Content” is normal.  Only the volume slider for your Living Room looks wrong.  It will say No Content until you start to play something.

Sound from speakers for our Samsung TV is not playing via speakers despite the volume bar showing. Speakers work fine with Spotify music.

@LeicesterCity Have you gone through the list of troubleshooting steps I mentioned above?

Still a bit stuck here. Help! Sonos was working fine via the TV until a couple of days ago. Spotify playing  out of my Playbar, Sub and two Sonos 1 speakers. When we use the TV we get no sound at all out of any speaker even though the volume bar is showing on the App (SPDIF).When I go through the TV settings on the App it says there is no connection. We have checked the cable connection, unplugged our Samsung TV -still no joy. We have an Optical cable. See photos attached. Will a change over to an HDMI cable work? If so , which size/model would be best for the old Playbar? Is it likely to fix the issue? Any suggestions?
 

Have you run TV Setup in the Sonos app? Have you checked to make sure the optical cable has been fully inserted into the Playbar and optical port on the TV? Also be sure the caps have been removed on each end of the optical cable.

What specific model Samsung TV do you have? Have you set the audio settings on the TV to Optical?

All sorted now. We simply bought a new Optical Cable and everything is working now. Thanks for your advice everyone.