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NS_E_DRM_LIC_NEEDS_DEVICE_CLOCK_SET
The exact DRM condition
NS_E_DRM_LIC_NEEDS_DEVICE_CLOCK_SET is Windows Media DRM HRESULT 0xC00D2779. It identifies the selected license requires a secure device clock that has not been set. The useful scope is the device-facing path that authenticates a WMDRM-capable device, obtains its certificate and secure clock, evaluates transfer policy, and records metering or registration state; it is not a generic statement that the media player, network or file system failed.
The built-in message summarizes the user-visible outcome, while the symbolic phrase “lic needs device clock set” preserves the exact WMDRM boundary for diagnosis. For this code, the proof step is to record license time policy and device clock initialization state.
The surrounding protocol and store state
A device can be reachable as storage while still failing WMDRM authentication, secure-clock or policy requirements. Time-bound and subscription licenses may require a trusted device clock; changing the host clock does not repair a device clock that was never obtained or set.
Evidence worth preserving
Capture the first NS_E_DRM_LIC_NEEDS_DEVICE_CLOCK_SET occurrence before retry or teardown changes state. The smallest useful record contains:
- Code-specific proof: record license time policy and device clock initialization state.
- Protected identity: secure clock value, source and last successful update.
- Operation state: requested transfer/burn action and license restriction.
- Persistence or transport: device activation, registration and metering result.
- Security context: device model, firmware and WMDRM capability.
- Correlation point: device certificate chain and serial identity.
Prefer IDs, hashes, sizes, and timestamps. Never log keys, passwords, licenses, or decrypted media.
Related codes and the diagnostic split
| Result | Different boundary |
|---|---|
NS_E_DEVICE_NOT_WMDRM_DEVICE | The attached device does not advertise the WMDRM capability required by this transfer. |
NS_E_DRM_TRANSFER_CHAINED_LICENSES_UNSUPPORTED | The requested device transfer does not support the selected chained-license relationship. |
NS_E_DRM_POLICY_METERING_DISABLED | The content requires metering but metering is disabled for the client or device path. |
Order the NS_E_DRM_LIC_NEEDS_DEVICE_CLOCK_SET event chain by timestamp; prefer the earliest specific result.
Diagnostic sequence
- Preserve
NS_E_DRM_LIC_NEEDS_DEVICE_CLOCK_SET, the calling interface and the first lower-level status before a wrapper replaces it. - Correlate
NS_E_DRM_LIC_NEEDS_DEVICE_CLOCK_SETwith one KID/license ID, content hash, device certificate or migration operation ID for this path. - Reconstruct the state transition immediately preceding “lic needs device clock set” instead of starting from the final player dialog.
- Prove the boundary by ensuring you can record license time policy and device clock initialization state.
- After you set the device clock through the supported online DRM workflow, verify both the requested right and the final store/device state.
Correcting the producing condition
Resolve NS_E_DRM_LIC_NEEDS_DEVICE_CLOCK_SET at its producing boundary: set the device clock through the supported online DRM workflow. A player reinstall, reboot or new license request is useful only when it changes the “lic needs device clock set” boundary and can be verified against the original evidence.
Representative case: A subscription track cannot be synchronized to a newly reset device.
Regression check
Repeat the operation that originally returned NS_E_DRM_LIC_NEEDS_DEVICE_CLOCK_SET. Assert the exact HRESULT at the producing API in the failing “lic needs device clock set” fixture; then change only the decisive precondition and confirm that the corrected run completes without substituting a neighboring DRM result. After correcting NS_E_DRM_LIC_NEEDS_DEVICE_CLOCK_SET, verify the requested action and the final license-store, secure-clock, device or migration state relevant to “lic needs device clock set”.
Code-specific operational note
The symbolic phrase “lic needs device clock set” is the important search and telemetry key for NS_E_DRM_LIC_NEEDS_DEVICE_CLOCK_SET. Keep it beside the exact value 0xC00D2779; the official message “The file could not be transferred because the device clock is not set.” is useful to users, but it does not identify the producing API, object generation or protected identity on its own.
Technical references
- IWMDRMDeviceApp interface — platform documentation used to distinguish this result from adjacent results.
- Device registration — official Windows Media DRM context for
NS_E_DRM_LIC_NEEDS_DEVICE_CLOCK_SET. - Output protection levels — API and state rules relevant to this boundary.
- Windows Media DRM error codes
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