DigiOne Quit During Playback, Won't Play Again

[16KHz]

Hello everyone - thanks for your help with this:

1. Yesterday while streaming Qobuz my RPi + Digione Signature quit payback in the middle of a track, and started to play from USB library
2. I selected 'Restart' from the system menu (iOS Volumio)
3. After 15 minutes of the 'busy' spinner the restart had not occurred
4. Hard reset
5. After restart (per Digione procedures), Volumio could not find the Digione on the network.
6. Multiple restarts later, device is still invisible to Volumio.
(7. No changes made to wifi settings, power, location, et c)
(8. Remains invisible on all Volumio devices)

(9. Usual LED's are on)

All suggestions appreciated...