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NS_E_ALL_PROTOCOLS_DISABLED
A practical diagnostic path for NS_E_ALL_PROTOCOLS_DISABLED
The diagnostic value of this result (0xC00D2EEB) is its location: client policy leaves no enabled streaming transport. That location is the failing streaming stage, not a generic statement that the file or server is unusable.
A Windows Media streaming request crosses name resolution, proxy selection, protocol negotiation, authentication, session creation and packet delivery. WMSP and related protocols maintain session state, so a valid TCP connection alone does not establish a usable media session.
Network and protocol evidence
| Capture | Why it matters |
|---|---|
| Owning call | Record the API method, object identity, thread or callback and timestamp for that stage. |
| Values to record | Original URL, chosen protocol, proxy mode, resolved endpoints, connection and response timing, authentication state, session identifier and first socket or protocol result. |
| Comparison case | Use one known-good resource that exercises the same streaming path while changing only the rejected precondition. |
Protocol-preserving retest
- Log
0xC00D2EEB, the exact operation and the first failure time. - Perform one isolated test: force one currently supported transport, such as WMSP over HTTP, while keeping the same publishing resource.
- Repeat through the same API and protocol path; a different player or local-copy test is useful only as a comparison, not as proof that the reported failure is fixed.
What completed, and what did not
before the failed operation, earlier setup may have succeeded, but client policy leaves no enabled streaming transport was not completed. This is why logs should preserve both the last successful call and it.
For a targeted comparison, force one currently supported transport, such as WMSP over HTTP, while keeping the same publishing resource before retrying. This isolates the disputed precondition without changing the media identity or unrelated machine settings.
Misleading actions
- Treating every streaming HRESULT as generic packet loss without separating DNS, connect, response and session phases.
- Record redacted identifiers, lengths, hashes and protocol fields needed to reproduce the original request.
Nearby results are not interchangeable
Main distinction: this HRESULT identifies a specific network or protocol stage and should not be collapsed into a generic connectivity failure.
| Nearby HRESULT | How to compare it |
|---|---|
NS_E_MULTICAST_DISABLED | the selected content requires multicast while multicast reception is disabled |
NS_E_INVALID_REDIRECT | the server supplied a redirect target that the client cannot accept or resolve |
NS_E_MSBD_NO_LONGER_SUPPORTED | The request depends on the retired MSBD transport instead of a supported protocol |
Technical references
- Windows Media HTTP Streaming Protocol overview
- Receiving a WMSP response
- Windows Media proxy interaction
- Windows media streaming protocol relationships
- Microsoft HRESULT registry
Retain the post-fix trace so a later pipeline result is not mistaken for recurrence of this boundary.
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