Why does my Sonos system turn itself on, playing a random song!?

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Hi could someone confirm what triggered my garden zone to start random playing at 4:10 this morning. Much to my families annoyance! This isn’t the first time either but remembered to submit diagnostics

1543892004

thanks  

Hello,

I'd like to get some insight into what keeps turning on my Beam randomly up to twice a day. Last time it happened was around 10min ago, after I switched my TV off maybe 20min ago. Most of the time the audio suggests that a random tv station is playing, as far as I remember for me it never played music.

Diagnostic code from the incident 10min ago: 508331929

While we wait for a Sonos rep to read that diagnostic, what is the Beam wired to? How is it connected, HDMI ARC, or optical? What is the source when the Beam starts playing, is it a music channel source, or a TV station source?

Sure, should've added all that in my initial post, reminder for next time: don't write a message from bed while falling asleep.

The Beam is wired to a Philips 58PUS8505 Android TV through an HDMI ARC port. When it starts playing it almost always is a TV station as source, however it does not fit the TV station that was watched before turning the TV and the Beam off. The TV screen stays black and the Beam turns itself off after about 10 to 15 seconds.

Yesterday evening the TV was used for watching Netflix and YouTube, both through the installed Apps on the TV, no TV station at all.

Regarding the TV station as source I say almost always since I can't 100% guarantee that it never was a music channel source in the past. However, if it was a music channel source at least it was not a song anyone in my wifi played before.

When I first investigated this issue I found a few threads that suggested turning off the auto update functionality of the TV might help since it can turn itself on (while leaving the screen black) to check for updates. This didn't help at all.

I can also rule out any animals sitting on the Beam as I don't own animals right now and the only child in the house is sound asleep in his bed when the Beam turns on. The touch controls are turned off in the app and the child has no wireless device in his room that could connect to the Beam.

The Beam is in a group with two Ikea Symfonisk speakers acting as rear channels. Those stay quiet when the Beam gets turned on (or are so quiet I don't notice them). In the app I configured my living room setup to have "TV Autoplay" active as well ws "No group when Autoplay".

Experimentally, please try turning TV Autoplay off.  It will be a bit of a nuisance for the duration of the experiment, as you will have to select TV audio manually when you actually want to watch television.

Whether or not that seems to stop it, I would also experiment with TV Autoplay back on and HDMI-CEC disabled in your TV settings.

Most curious. John’s suggestions are outstanding, and I’d also suggest using the TV to force a check for a software update to its firmware. Leave the automatic process turned off, but double check to see if there is an un-applied update. 

Frankly, I’d be tempted to suggest a reboot of the TV’s OS as well, by unplugging it from the wall for a least 3 minutes. 

If it’s not clear, I think the Sonos is doing what it is told to do, as normal, and the issue appears to be that the TV is generating a signal when it shouldn’t. The Sonos is essentially a ‘dumb’ device, and when something is sent to it, the Autoplay function works, and it plays whatever signal is being sent. 

Note: this could change if it turns out in that diagnostic if the command is coming from elsewhere, and it’s not the TV autoplay being engaged, but instead a music station. 

This just happened to me at 4:30.  It seems it’s happened to other people at 4:30 AM est as well? 
 

I submitted a diagnostic test but didn’t record the number.  How do I Find the number to repost it in this group? 

I do not think you can. But Sonos can see all diagnoses sent from your account. Contact them.

This just happened to me. Random song autoplayed at 6.10 am.

Diagnostic:

2145498528