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NS_E_DRM_EXPIRED_LICENSEBLOB
Meaning in the active workflow
The first actionable fact in NS_E_DRM_EXPIRED_LICENSEBLOB is that the license blob carried in the Cardea request has passed its validity interval. The owner is WMDRM for Network Devices; its working contract covers the transmitter/receiver protocol that registers a network playback device, approves it, validates proximity, opens a protected session and transcrypts licensed content for that receiver.
Before changing the machine, parse blob validity using trusted time and correlate it with the session.
Confirm the condition
- Preserve this result and
0xC00D28B3before cleanup, fallback or another media item changes the context. - Apply the targeted fix: obtain a fresh license blob for the same authorized action.
- Associate this result with its current WMDRM for Network Devices object and the requested action.
- Run the direct check: parse blob validity using trusted time and correlate it with the session.
- Compare the failure with a known-good case that changes only the property named by this condition: the license blob carried in the Cardea request has passed its validity interval.
- Repeat the same action with the same content/device identity and verify that this result is not replaced by another policy or trust failure.
Preserve the original generation
It is meaningful only while the following state remains associated with one operation: device certificate and serial number, registration-database entry, approval flag, validation timestamp, network session, protocol message and transcrypt policy. Preserve the exact WMDRM-ND message type, device identifier, certificate chain, registration state, round-trip timing and the first protocol HRESULT for this operation.
This evidence matters because the rejected condition is specifically that the license blob carried in the Cardea request has passed its validity interval.
Failure model
The before/after comparison has one controlled variable. Before correction, the license blob carried in the Cardea request has passed its validity interval; after correction, the same workflow can obtain a fresh license blob for the same authorized action. Keeping the result transition intact also shows whether a retry reused stale state or actually reevaluated the corrected input.
Diagnostic checklist
| Field | Value |
|---|---|
| Direct check | parse blob validity using trusted time and correlate it with the session |
Compare neighboring states
| Result | Why it points elsewhere |
|---|---|
NS_E_DRM_INVALID_CRL | the certificate revocation list used by WMDRM-ND is malformed, corrupt or unverifiable |
NS_E_DRM_ATTRIBUTE_TOO_LONG | a WMDRM-ND attribute name or value exceeds the protocol/API limit |
NS_E_DRM_INVALID_LICENSEBLOB | the Cardea request contains a license blob that fails format, integrity or binding checks |
What remains unknown
The license blob carried in the Cardea request has passed its validity interval.
Operational response
Correct this layer directly and obtain a fresh license blob for the same authorized action.
Technical references
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