I use Spotify Connect a lot with my B&O A9 and works very good. However, my smartphone (an HTC One M7) disconnects from my A9 after 3 or 4 songs, no matter if the screen is on or off, if I leave the Spotify application. This brings some problems:

• I cannot monitor the playing song with my Pebble (the A9 has no screen nor remote control)
• If I open Spotify, it takes a while to synchronize with my A9. At first it usually appears as not connected to internet for a few seconds
• Tracks queing become unusable. I can put as many tracks in queue as I want and they play ok in my A9, but if I open the Spotify app it shows a "track not available" notification and skips a few tracks before being able to connect again.

I don't really know what causes this, but I don't think it's related to Android since all other internet based apps are working as expected: only Spotify disconnects. I think it may happen because Spotify somehow detects that it's not running and thus goes to a sleep state.