Yup same here.  With no warning when streaming from Spotify I get 100% volume out of a pair of play 1s.  I live in an apartment and have had complaints from the neighbours as this happened whilst in the shower. I take care of my equipment and don't appreciate them being thrashed  uncommanded !  Please fix with Spotify .  Surely this is one of the most common configurations these days? They may sound great but  My word do they have some problems    Not good enough  . 

this has been happening to me, but today it's happening repeatedly. I play music from Spotify to any of my Sonos speakers and the the volume jumps to 100%.

Did we know if this is a Sonos bug or a Spotify bug?

And more importantly, is there a fix on the horizon?

Aye, after the last update the volume went all the way up between songs, and Björk’s ‘Innocence’ is not what you want blasted at you at full power without prior warning.

The real solution to this problem seems to be called Apple Music. I’ve been trying to keep away from it, but it looks like Spotify is bent on getting rid of me. This is neither the first nor the tenth big issue I had with Spotify in the last few years.

Thanks Ryan.  As annoying as it is it's good to know that we are at least being heard. There clearly need to be more collaboration on change control between sonos and its partners  especially spotify it would seem  

Happening to me too.  Have submitted a diagnostic, ID 1722275228.

I've noticed it seems to happen to me at the same time as the the small Spotify button menu appears the top of the android swipe down menu. I don't know the terminology. Maybe Spotify Connect.

So far swiping this away every time it appears seems to eventually stop it happening - at least until the next time I launch Spotify.

Time will tell if I'm right about this.

I can confirm it started a few weeks ago. It doesn't happen if I launch Spotify songs only using my old Sonos controller. But if I then use my phone, even without launching Spotify, it happens when Spotify Connect pops up

Oh, that’s interesting! I use the laptop most of the time to control Spotify, but yes, their Android widget randomly crashes and restarts. No idea whether it’s equally bad on an iPhone.

I’m going to switch off my phone for a while and only use the laptop, then report back :)

I’m suddenly experiencing the same MAXIMUM SONOS VOLUME on my 2 Sonos Play5 5Gen1] using Spotify. If I wasn’t deaf before, I sure as hell am now! It’s happened twice … and I won’t have it again … so my much loved Sonos devices are firmly switched off until I can be sure of avoiding a repeat episode. I’ve used Sonos boxes these for years without problems, so I’m really missing them.

I’ll look at limiting the maximum Sonos volume aas suggested elsewhere in this thread although even random 50% volume could be problemmatic], and I’ll also submit a Sonos diagnostic. Unless I can get this fixed, I’ll be ditching Sonos or Spotify or both hard as I’ll find that! My planned purchase of a Sonos Move is also on hold!

Good idea! That might be equivalent to me using my old controller that sonos used to sell.

If I use it to restart streaming from a Spotify playlist then I have no problem, unless I subsequently go to my phone.

If/when that widgety thing starts on my phone then the volume will go maximum eventually, even without starting the Spotify app

Diagnostics

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Thanks Ryan,

That update was 4 days ago but Spotify hadn't updated. I've got 8.5.32.889 now and I'm getting more optimistic it's a fix. The "widgety thing" is up, but the volume hasn't maxed out (yet).

Thanks for the support here.

There have been Spotify/Sonos problems mentioned on here for several years. Is this the first fix?

I've ONLY suffered for, I guess, 6 weeks. Would it be churlish to suggest it's taken a ridiculous amount of time for Spotify to get their act together?

(Maybe there have been different problems)

I contacted Sonos who asked me to send a diagnostic … said they can identify the device causing the volume change …. unfortunately I’d switched my speakers off, which meant that the trace had gone. Sonos were helpful anyway … pointing out it was time I scrapped my old bridges and asking me to resubmit a diagnostic if the MAX Volume issue happens again. Meantime, setting my MAX VOLUME = 50% should reduce the impact of any recurrence. I’m back in business thankfully!

Hi I have really old gen1 Sonos kit too. My partner have the latest version of Android Spotify 8.5.32.889 …. but I was using my iPhone when I experienced the MAX VOLUME problem -   Its on version 8.5.31.989 - that seems to be the latest available for iPhone, but perhaps there’s another version in the pipeline. Good luck with the shopping!

I wonder if it's been fixed on Android but not iPhone, or if I'm kidding myself it's been fixed at all

I’m guessing you have contacted Sonos and submitted a Diagnostic so that they can verify which device asked for the volume to be ramped up? If not, I think its worth doing ‘cos it keeps them in the loop and perhaps puts pressure on Spotify if it is them. I found Sonos really helpful with this.

I posted these a couple of times but it's no longer immediately obvious to me how to contact them (I have in the past).

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Anyway, I'm now pretty sure Android is fixed, for me at least. From your experience, it seems Spotify still have to fix iPhone.

This ought to be a big deal for both Spotify and Sonos if they are losing sales

For me the update for Spotify didn’t fix the bug!

Playing with the Sonos app doesnt give a problem. But when I play music from the Spotify app on my Samsung S8 (even after the laste update (Version 8.5.32.889, Netherlands, Europe) the volume goes suddently MAX!

Im curious if I am the only one.

I agree - its fairly easy to contact Sonos using the app, then settings , then help … eventually you get to an email / twitter / messenger page. I used https://support.sonos.com/s/education?language=en_US

If it’s not fixed for everyone then it's not fixed. I have an old Nexus 5 running Android 6.0.1

Thank you podra. It could be that twitter and messenger put me off (I forget). I'll follow this up if the problem comes back

Try contacting Sonos and sending them a Diagnostic gonly works if you haven’t turned your speakers off].

The update seems to have fixed THIS problem.

Spotify Connect now doesn’t sync what’s being played with the Sonos app like it did before, Spotify on my phone keeps crashing (music stops playing), I keep getting the message “this song can’t be played right now” when I am playing a Spotify playlist using the Sonos controller app on the Mac, but otherwise all is fine ;)

One day Spotify will redirect their engineers from “add lyrics in real time” to “fix the countless bugs” and we will all be shocked.

I Got the following response from Sonos today:
Thanks for reaching out to Sonos Support, my name is Xander. I know you want to get back to enjoying your Sonos as soon as possible, so let's get this resolved for you. 
Glad to hear the issue hasn't repeated. We have been in touch with Spotify regarding this. There is an update for the Spotify app on Android devices which should fix the issue. Regarding iOS devices, we have reported the issue to Spotify and are working on addressing the issue.
Xander P

Sonos | Customer Care | Contact Us

I encountered this issue after using Spotify (MacOS) to play out to Sonos One with Airplay 2. Sonos One spontaneously increased volume after it had been set to a low level.  Shut down Spotify and then started to listen using Sonos iPad app. I seem to have stopped it by changing MacOS output back to “Internal speakers” even ‘though the playback had been started directly from Sonos iPad app from music in my iTunes local source.