This is by design to avoid clipping of the audio signal being played from computer of DAW, and the direct monitor signals on hardware.
Verify in windows sound settings that the appropriate H224 outputs are selected. If you speakers are connected to H224 outputs 1, 2, then select “Speakers H224 Audio Driver” (which is H224 outputs 1,2).
After hibernate or sleep, H224 volume may be lowered, simply readjust the volume as needed.
Music playback applications via computers and on-line streaming software services are designed to stream their outputs to a single stereo set of outputs (outputs #1 & #2 by default).