| Previous | Next |
| NS_E_DRM_EXPIRED_LICENSEBLOB | NS_E_DRM_INCLUSION_LIST_REQUIRED |
NS_E_DRM_INVALID_LICENSEBLOB
Meaning in the active workflow
The first actionable fact in NS_E_DRM_INVALID_LICENSEBLOB is that the Cardea request contains a license blob that fails format, integrity or binding checks. Diagnosis of this result therefore starts in WMDRM for Network Devices, the layer responsible for 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, preserve blob hash, parser/integrity result and associated content/session IDs.
Diagnostic checklist
| Field | Value |
|---|---|
| Owner | operation, API/callback, object or session identifier, and component/device version associated with this result |
| Direct check | preserve blob hash, parser/integrity result and associated content/session IDs |
| Policy input | requested action plus the exact license, certificate, profile, output or registration property evaluated by this result |
Preserve the original generation
A complete incident ties together device certificate and serial number, registration-database entry, approval flag, validation timestamp, network session, protocol message and transcrypt policy; the minimum correlation set is the exact WMDRM-ND message type, device identifier, certificate chain, registration state, round-trip timing and the first protocol HRESULT.
This evidence matters because the rejected condition is specifically that the Cardea request contains a license blob that fails format, integrity or binding checks.
Failure model
The transition that returns it begins with preserve blob hash, parser/integrity result and associated content/session IDs. If that observation matches, the next state cannot be reached until the implementation can regenerate the blob through the licensed DRM API rather than editing it. Use a known-good counterpart only as a control; do not replace the failing artifact before its identifiers and hashes are recorded.
What remains unknown
The Cardea request contains a license blob that fails format, integrity or binding checks.
Confirm the condition
- Preserve it and
0xC00D28B4before cleanup, fallback or another media item changes the context. - Compare the failure with a known-good case that changes only the property named by this condition: the Cardea request contains a license blob that fails format, integrity or binding checks.
- Apply the targeted fix: regenerate the blob through the licensed DRM API rather than editing it.
- Associate it with its current WMDRM for Network Devices object and the requested action.
- Run the direct check: preserve blob hash, parser/integrity result and associated content/session IDs.
Compare neighboring states
| Result | Why it points elsewhere |
|---|---|
NS_E_DRM_ATTRIBUTE_TOO_LONG | a WMDRM-ND attribute name or value exceeds the protocol/API limit |
NS_E_DRM_EXPIRED_LICENSEBLOB | the license blob carried in the Cardea request has passed its validity interval |
NS_E_DRM_INCLUSION_LIST_REQUIRED | the requested operation requires an inclusion list that the license does not contain |
Operational response
Repair the owner of the check: regenerate the blob through the licensed DRM API rather than editing it.
Technical references
Looking for a different code? Search another status or error code.