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NS_E_NOFUNNEL
What NS_E_NOFUNNEL means
NS_E_NOFUNNEL (0xC00D000C) means Windows Media Services has no established data connection for the requested operation or stream path.
Evidence to preserve
Capture the session/object identity, control connection state, expected data connection, selected protocol, and the event sequence that should have created the data path.
Interpretation
The control/session object can exist while the data path does not. This result therefore points to missing connection state rather than necessarily to media corruption.
Recovery and verification
Re-establish the session/data connection in the documented order and retry with fresh objects instead of reusing a stream object that never obtained a data path.
Technical references
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