Songs stop playing at end of songs

Update:  I disabled MAC address spoofing.  No change.  Before I moved on to the next suggestion, I noticed something else likely related.  When it gets to the point where it stops playing at the end of a song (Fixing a Hole from Sgt. Pepper in this case), when I look at the Apple Music app and at the Sonos app, both are showing it still playing in the middle of the previous song (Getting Better in this case).  If I tap the skip to the next song arrow, it starts playing Fixing a Hole again.  While I haven’t confirmed this exact same oddity with the Amazon Prime app, I do experience the same issue with stopping at the end of a song with it, so I don’t think this is an Apple Music app bug.  It also is not device specific since I have the same issue with my iPhone 13 Pro and my iPad Pro, both running 15.3.1.  Seems to be some sort of AirPlay feedback issue maybe?

I’d suggest it’s some sort of wifi interference issue, where the speaker is losing connection to the network, and playing the rest of its buffer before dropping. The fact that it’s not showing the correct playback information in the controller certainly suggests some sort of interruption between the speaker and your router, or your router and the controller device. The controller should be reflecting what is happening at the moment on your speaker. If it’s not “current”, it suggests some sort of disconnect. 

Just as a random thought, and looking back on Ken and my responses, I don’t see a simple network refresh being suggested. Unplug all your Sonos devices from power, then reboot the router. Once the router comes back up, plug back in all the Sonos devices. This forces them to get new IP addresses from the router’s refreshed DHCP table….it’s possible that duplicate IP addresses could be at the root of this issue, unless you’ve got reserved IP addresses, in which case this process wouldn’t help. 

Good suggestion.  I may go ahead and assign them static IPs just to eliminate this possibility.

Eliminating that as a possibility is an excellent step. Could be the issue, may not be, but knocking down those potentials one at a time should help the honing in process :)

Would that networking was not so complex…. 

No love.  Got them both and static IPs and stopped after the second song.  The frustrating thing is I’ll work on my home office 3-4 days a week with it streaming to my HomePod all day long and have never had so much as a hiccup.

 Meant to say “got them both on static IPs”.

At least we’ve removed that as a possibility. So, the next time it happens, I would recommend that you submit a system diagnostic within 10 minutes of experiencing this problem, and call Sonos Support to discuss it.

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

Unfortunately, none of us unwashed outsiders from Sonos have access to that hard data….I’m assuming there’s liable to be personally identifiable information in it, and for legal reasons, they don’t want us to see. 

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 Sonos system and network.

Admittedly, I find what you describe here with the playing track ‘progress bar’ in both mobile Apps as showing something isn’t quite right - it is almost like the playing mobile device has lost its connection halfway through the playing track. Is there any type of security software or VPN running on your mobile devices?

Nope.  No VPN, adblock, adguard, or any other security apps on either on either device.

I went ahead and submitted a diagnostic to Sonos (I can reproduce the problem very easily - not sure I’ve ever played an entire CD uninterrupted).  Contacted support, and they were of no use whatsoever.  They said there was nothing abnormal in the diagnostic report, and no indication of wireless interference.  They best they came up with was “maybe it’s a limitation of AirPlay, and we can’t control that”.  I let them know that 1) I’ve been streaming from the same devices to my HomePod on the same WiFi network for two years and never had an issue, and 2) if it’s an AirPlay limitation, and Sonos only allows AirPlay and not BlueTooth, that makes it a Sonos limitation and the devices therefore useless to me.  Obviously, I’m not buying that theory.  In the end, they gave me nothing to go on except suggesting a factory reset.  And given they saw no reason to indicate that was going to fix anything, that’s not a solution.  That’s just shotgunning it.  These may be going back to Best Buy.  I'm pretty frustrated as there are no other AirPlay speaker options out there with the sound quality of the Fives.