Sonos Play:5 not listed in Connect (Windows 10)

[falomain]

I can't see my Sonos listed by Spotify Connect on my Windows 10 desktop PC.

My Sonos Play:5 is logged into Spotify Premium and I can use the Sonos controller app to stream Spotify music to it. However, this player is not visible from Spotify's connect (either desktop or iOs app), so I cannot use Spotify to play music on my Sonos.

Is any other Sonos user having the same problem? Is it a known limitation by Sonos or Spotify? I have searched the entire forum and Sonos' comunity for this specific issue but no luck.

I will appreciate anyone's contributions, thanks!