Volume Randomly Increasing to Max

This problem was driving me crazy as well. I ended up unplugging my Ikea Tradfri home automation hub and it instantly solved the problem for me. I have the Ikea Symfonisk which is a volume dial designed to control Sonos speakers. My *guess* is that the batteries were running low and it's causing some erratic behavior. 

This may or may not be the solution for others but isolate the cause by disconnecting any physical device that has the ability to control the volume of your speakers.

Sounds to me like a Spotify mobile app connection to the Sonos MAPI interface was not ended correctly and the audio 'restored' to the mobile device and that volume was adjusted to Max with the phone hardware buttons … perhaps ensure the audio is redirected back to the mobile device at the end of playing from Spotify and that should stop this happening in the future.

This is a Spotify issue surely, rather than a Sonos issue? ... as the session connection to the API continues after their App has closed and even after the device has left the home LAN, which means this can occur whilst positioned at a remote location. I would just ensure you end the playback session appropriately, or perhaps speak with Spotify Support about the matter to get them to resolve this issue at their end.

I have an XS, whether relevant or not, as my Sonos controller, and in the last 2 days my system suddenly moved to full volume for no apparent reason. For the last year or so before this, it’s been completely stable!?

I am having exactly the same problem as reported by many others before: Playing music via Spotify, switching to the iOS Sonos App to group my rooms and after grouping suddenly the volume increases until it reaches the maximum. Toggling it back down does not help as it increases back to maximum right after. This problem is serious, especially when you are living in an apartment complex with neighbours all around. 

Therefore I am asking: What’s the status of this issue? When will there be a fix?

Exactly the same - if I open Spotify and connect to Sonos speaker from in Spotify volume goes to max in whole house - is there a fix for this?

At the moment it means I can’t connect to Sonos speakers through Spotify which is really annoying.

Same issue here. Spotify on an iPhone X with 2x play 3s, sub and soundbar. Volumes will be uncontrollable and goes to max on its own. I will fight with the volume in the Sonos app but it will keep going up to max on its own even when I pull the slider down. Horrible bug and with this many people complaining, how has this not been fixed yet??? 

In every case that I’ve seen a resolution posted by someone who worked with Sonos to diagnose the issue, it’s always been an external cause, most frequently a stuck volume button on a phone, although one time, it was a remote under a couch cushion.

If you can submit a system diagnostic within 10 minutes of experiencing this problem, and contact Sonos Support to discuss it, I’m sure they would  be most happy to work with you to figure out the issue….even if it does turn out to be a Sonos software issue, which they could then fix in the code and roll out to everyone. 

I usually suggest the phone folks, they have more tools available, and are available Monday through Friday during business hours. Twitter support folks are available 24/7.

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

Add us to the list! Our volume randomly jumps to max whilst listening to local radio through Tune in radio. Today it has just turned itself on at full blast! The radio wasn’t even on!

Any help gratefully accepted! 

This has been happening to me for years when listening to Spotify through Sonos.  Different speakers different iPhones… And Bruce I like your optimistic view of the world but it's not a remote under the couch cushion.  At this point I have just gotten good at pausing the music very quickly so I can close and reopen the apps. USUALLY that fixes.  In my experience Sonos support is a bunch of know it all tools with suggestions like Bruces that everything is user error.  I don't think they are going to worry about fixing it.  It's been happening since at least 2018 for me.  

And me. I’m fairly new to Sonos products but it’s happened a couple of times now when using Spotify.

I am experiencing this same problem. What a shock at 9.30pm. My neighbors are angry. I am upset. Playing music in Spotify. Set from Spotify to play in Sonos.  Went to sonos and volume was on very low and the switches shot up to 100% without touching them. I tried to reduce it and it kept shooting up to 100% volume. I think this is utterly pathetic that this issue has been going on for a year according to this board. Each of my iPad, sonos and Spotify are fully up to date apps wise. Sonos sucks sometimes  

Er, no, Airgetium. That is not the case, as I live alone and it is a closed system. But thanks for your thoughts all the same.

This was a true repeated error with the sliders rocketing up, even when I repeatedly turned them down they went straight back up: I saw as much and the volume went to maximum a few times in succession. Nothing to do with a competing user.

This is some kind of conflict between spotify and Sonos 2. And again I am very upset by Sonos. I have had a number of problems over the years and wished I had bought a different system now.