Try rebooting the Play:3s to see if that improves performance.

Jdust rebooted them and sub. Played for thirty seconds in sonos app and stopped. Also I can't see them in Spotify 

Hi ​@contaygious 

Thanks for your post!

I am sorry to hear of this issue you are having with playing Spotify on your Play:3 speakers.

Encoding errors seen when streaming generally mean that there are transmission errors from the router to the speaker.

I recommend you read our Reduce wireless interference article, keeping in mind that the interference could be near the speaker or near the router, or the issue could be that the signal is just too weak.

If you cannot see an obvious solution, I recommend you get in touch with our technical support team who have tools at their disposal that will allow them to give you advice specific to your Sonos system and what it reports.

I hope this helps.

So I only fixed it by unpairing my stereo and sub together and then resetting them up as a stero pair again fyi it had nothing to do with wireless interference at all. My speed is 1.5gigs per second on the phone and PC literally next to the speakers 

Sadly, most speed errors are between the Sonos speakers and the router, not between the router and the outside world, or the controller device and your router. 

I’m certainly glad your system is working now!

You may want to rethink your conclusion as not being inference. The connection between a stereo pair is wireless. Therefore interference can interrupt that connection. Breaking and setting up the stereo pair (short of a factory reset which is a last resort) although frustrating can resolve an inference issue. Glad it didn’t require rebooting your network.

If the issue returns I suggest you run a diagnostics within 10 minutes and make note of the reference ID. Then call Sonos tech support. Do not post the reference ID in the community due to privacy concerns. Enjoy your Sonos!

Hi ​@contaygious 

Glad you found a solution - thanks for updating the thread!