I have a new Lenovo ThinkPad and the volume keys (incl mute) don't change the volume on my stereo when using Spotify Connect on Wifi. When I toggle volume keys up/down the Windows volume appears to be changing (ie the W10 pop-up slides up/down) but doesn't seem to do anything in Spotify (ie the Spotify Connect Volume slider doesn't move). It doesn't seem to make any difference if I am in the Spotify App or have it running in the background.
The volume keys work fine when playing through the Laptop speakers and tested fine on my Bose bluetooth speaker.
Appreciate any advice or similar experiences.
Lenovo ThinkPad X1 6th Gen - Windows 10 Home.