Hi @Stefano_Dainese,
I hope you don’t mind, I’ve moved your post into a new, dedicated topic thread for easier troubleshooting.
Last time, the affected endpoint was a Topping DAC connected by USB, and you temporarily resolved symptoms by updating the device firmware.
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Are you still referring to the same Topping USB Zone?
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Do you see this error with other endpoints/Zones?
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What about the System Output of the PC (whichever audio driver is currently installed for your PC speakers)?
We’ve gone ahead and pulled account diagnostics from the affected Core, and there are clock sync errors coming from this Topping E50 endpoint. I recommend reviewing your clock settings on the Topping’s own interface and verifying there’s not a conflict with Roon’s clock assignment priority or your clocking assignments.
- Can you please share a screenshot of the Device Setup page for this endpoint by clicking on the gear for the relevant Zone in Roon → Settings → Audio?