What does HRESULT 0xC00D11E5 (NS_E_WMP_AUDIO_DEVICE_LOST) mean?

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Description:

An audio device was disconnected or reconfigured. Verify that the audio device is connected, and then try to play the item again.%0

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NS_E_WMP_SERVER_SECURITY_ERROR	NS_E_WMP_IMAPI_MEDIA_INCOMPATIBLE

NS_E_WMP_AUDIO_DEVICE_LOST

Diagnosing NS_E_WMP_AUDIO_DEVICE_LOST in the Windows Media Player playback path

NS_E_WMP_AUDIO_DEVICE_LOST (0xC00D11E5) is returned when an audio endpoint used by the running graph was removed, disabled or reconfigured.

Correlate the failure with the same endpoint ID and device-generation event. Re-enumerating the endpoint after removal is a new playback generation and should not be used to reinterpret the original loss as a codec failure.

Controlled playback comparison

Freeze the current object state and collect device instance ID, endpoint state notifications, default-device change, format change, driver reset and graph timestamp.
Reproduce this result once without automatic retries or fallback applications.
Change only one precondition: select a stable endpoint, rebuild the renderer branch and replay the same item.
Compare the first nested status and next Player event with the failed run.
After testing it, restore the original configuration if the change was diagnostic only.

Actions that obscure the cause

retrying on the stale device handle without rebuilding the renderer.

Technical references

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