Roon and streamer Soundaware D300 REF


I bought a Soundaware D300 Ref streamer on 20th October 2019 presented as Roon ready.

Everything worked well so far but since a few days Roon is not working anymore. I tried to reactivate it without success which seems to have been a mistake.

What can I do?

Thanking you
Best regards
Jean-Patrick Deberdt