Gen 1 Speakers & Spotify

Has anyone else had persistent problems with Gen 1 speakers and the playback from Spotify?

I've had issues with Spotify pausing at the start then again mid songs/podcasts/audiobooks as if buffering and stopping at the end of some tracks. I reached out to support awhile back who checked my setup (Play 5.1) from their end and said it was wifi interference as Spotify 'uses a lot of data'. I had it set to play back at the lowest quality and it would still do it. The speaker was 3m line of sight from the router. Using a bridge was slightly better. Was suggested I use an ethernet cable. Spotify played fine on my phone and PC even if 25+ meters away in the garden (on wifi). Makes you wonder how much data Spotify uses when 4k movies stream flawlessly...

I found a solution. 

Ditch the genocide funding Spotify and use Tidal. Tidal pay the artist about 4x as much as Spotify. The UI is pretty much the same. Just as many artists a Spotify. You can copy your library and playlists (of which only 2 songs were not found) across for free using a 3rd party service which you are prompted to do so. 1st month trial is free, then currently cheaper than Spotify. I've been playing back at High quality with no pauses. Using FLAC it may pause for a couple of seconds after starting to play (so I pause straight away just to allow a buffer), and may be stutter later once or twice in an album; but a massive improvement considering it is FLAC vs persistent interuptions at Low quality in Spotify.

Before this I bought a cheap bluetooth reciever to 3.5mm audio jack which I used in line in. No problems on any service playing from phone or PC. This will cast all sound from the source and bypasses the Sonos App and speaker selection from within Spotify. Basically you can play anything through the speaker from the device attached via bluetooth; so if you've still got that carefully curated Windows Media Library you can play direct from there. Downside you have to power the receiver on each time and go into the Sonos App to select Line In; and you can’t move from one device to another to manage what is playing.