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NS_E_DRM_NO_UPLINK_LICENSE
The first reliable fact
The condition encoded by 0xC00D2848 is not generic playback failure; it is that a chained license references a root/uplink license that is absent from the available license set. The subsystem producing NS_E_DRM_NO_UPLINK_LICENSE is Windows Media DRM client internals, not the media decoder; it performs the client DRM engine that initializes security components, validates content and license identifiers, performs individualization, manages license chains and coordinates protected playback capabilities.
Start by recording leaf-license KID, UplinkKid and enumeration of matching root licenses.
The transaction to reconstruct
This result is meaningful only while the following state remains associated with one operation: DRM component version, KID, content header signature, license chain, uplink license, individualization state, portable-device registrations and local configuration. Preserve the KID and header hash, DRM component version, individualization status, license-chain identifiers, registry/configuration lookup and the first client callback reporting the failure.
The producing layer has not made a claim about every media operation; it has only established that a chained license references a root/uplink license that is absent from the available license set.
A controlled before/after test
Reconstruct the transition from the requested action to the rejected condition. To verify this, record leaf-license KID, UplinkKid and enumeration of matching root licenses; the repaired transition must then install or issue the correct root license before creating or evaluating the leaf. Use a known-good counterpart only as a control; do not replace the failing artifact before its identifiers and hashes are recorded.
Incident data
| Field | Value |
|---|---|
| Direct check | record leaf-license KID, UplinkKid and enumeration of matching root licenses |
| Policy input | requested action plus the exact license, certificate, profile, output or registration property evaluated by this result |
| Temporal state | trusted/system time, validity interval, request sequence and retry number when they influence this result |
Reproduce at the owning layer
- Preserve it and
0xC00D2848before cleanup, fallback or another media item changes the context. - Associate it with its current Windows Media DRM client internals object and the requested action.
- Run the direct check: record leaf-license KID, UplinkKid and enumeration of matching root licenses.
- Compare the failure with a known-good case that changes only the property named by this condition: a chained license references a root/uplink license that is absent from the available license set.
- Apply the targeted fix: install or issue the correct root license before creating or evaluating the leaf.
What the result does not prove
A chained license references a root/uplink license that is absent from the available license set.
Do not merge these failures
| Result | Why it points elsewhere |
|---|---|
NS_E_DRM_RESTORE_SERVICE_UNAVAILABLE | the remote license-restore service is unavailable during a restore transaction |
NS_E_DRM_CLIENT_CODE_EXPIRED | the DRM client security code is outside its accepted validity period |
NS_E_DRM_INVALID_KID | the supplied key identifier is malformed or not valid for the DRM operation |
Restore the required state
The next attempt becomes meaningful only after you install or issue the correct root license before creating or evaluating the leaf.
Technical references
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