Streamed music sounds awful in my system and I don't know why ....

cd's spun in a transport are so much more satisfying.  Streamed content lacks body, bass, and correct timbre.

DAC is the Moon 780 driven by Moon's transport with Audience Front Row loom. Streamed source originates  from Windows Media Player platform into the same DAC 780 via CAT 6 cable hardwired into a Spectrum router.

If I wanted to upgrade the streaming experience, where would I start ?

Rest of system -Shindo Giscours pre-amp, VAC Phi 300 amp, Purist speaker cables feeding Wilson Sophia 3's.

Thanks for any guidance.