[PROBLEM] Spotify does not see the device

[blino59]

... I activated Moode renderer in the SetupAudio section but none of my devices detects the raspberry among the connectable objects as opposed to the same devices....

Let's be specific about how you activated the renderer.
Under Spotify renderer, you changed the Spotify "Off" setting to "On" (with a green dot following "On")
*and*
you clicked the "SET" box
*and*
The moOde UI responded with a popup which declared "Spotify renderer on".
Is this correct?
Regards,
Kent