I have two Soundtouch 10 speakers.
In the past I have been able to use them individually and together playing the same music connected through wifi. However it is no longer possible to make them play together.
Both of the speakers are connected in the app, and can be played individually by switching in the app and I can press the button "play on all devices", it gathers them in a group, but music will only be played from the device I connected to at first.
I am using the Bose app on Android and not the Spotify app, and I have disconnected the speakers and added them to the network once again without any luck.
I have also tried to pair them as stereo - which seem to work with the beeping. But music-wise it doesn't work...