spotify used to work with sonos- why did sonos have to break that??

Pretty generic post.  If you are here for help and not just to rant, could we have some detail on what you mean by Sonos "breaking" Spotify?

Troll or spam?  Your guess is as good as mine.  Joined today, rant with only vague details and not related to any known issue , no profile completed…...

Sonos supports Spotify Free and Spotify Premium accounts. A Spotify Free account allows you to search for Spotify artists, albums, and playlists in the Sonos app. When listening to music with a Spotify Free account, you're limited to six song skips per hour.

And the problem with Sonos is....?

Not spam. I have Spotify premium. Ever since sonos released its new iPhone app, Sonos will fail to connect to Spotify or “deregister”. It will work for a few hours after I reauthorize Spotify, but then the problem repeats itself. The same thing occurs if I try to use Spotify through Alexa voice controls. The Sonos app is not working consistently with Spotify 

I suspect that you’re experiencing some sort of internal network issue, and not an issue inherent in the Sonos app itself. There certainly has not been a widespread posting of complaints from thousands of users, which there has been in the past when there’s been an issue in the Sonos controller.

I’d certainly recommend that you submit a system diagnostic within 10 minutes of experiencing this problem, and call Sonos Support to discuss it. If indeed there’s an issue in the controller, I would think that it would be reflected in that diagnostic, and Sonos support would be able to discuss it with you, and pass on the hard data to the engineers for fixing. However, if there’s some other issue going on, as I suspect, it would certainly help the Support folks to look at the hard data from your system, and assist you in figuring out the best way to repair the situation. 

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. Something that those of us in this community do not have. 

The app is just a remote control so its release cannot possibly be the cause of your problems. That is simply impossible.

And if this were a generic bug then this forum would have sunk under the weight of complaints. 

That doesn't help you, I know, but it may be that if we explore further the  Community  may be able to help 

Have you tried playing Spotify on Sonos from the Spotify app and if so how does it behave?

Hi. I get how this user is frustrated. I also can’t add Spotify to my Sonos app. The FAQ type fixes I’ve tried do nothing.  
After I first got my Roam a year ago I did all the app set up including adding Spotify. Bit awkward and hard to see the benefit, but got there. since I mostly just use the Spotify app or other apps and connect over Bluetooth, a few months went by before I went to use Spotify on the Sonos app again and it didn’t show as an option. Looked for FAQ advice. Rebooted all my network components. Reset the Roam. 
The Sonos app now shows TWO Spotify services as available and yet it will not add them and comes up with something like “problems connecting to network, like to try again?”.
Well I have tried again and gone through resetting the router and switch and fibre too often now so I just don’t bother with it. 
So what once worked is now just an irritating non-feature whose value was always questionable. I don’t want to waste too much time figuring it out, but letting you know, it isn’t that straightforward and issue free. 

Does SPOTIFY work when using the SPOTIFY App on the phone to play on the phone? Is this a Apple or Android device?