What does HRESULT 0xC00D2F0C (NS_E_INCOMPATIBLE_PUSH_SERVER) mean?

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Description:

The Server service that received the HTTP push request is not a compatible version of Windows Media Services (WMS).  This error may indicate the push request was received by IIS instead of WMS.  Ensure WMS is started and has the HTTP Server control protocol properly enabled and try again.%0

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NS_E_PUSH_CANNOTCONNECT	NS_E_END_OF_PLAYLIST

NS_E_INCOMPATIBLE_PUSH_SERVER

Diagnosing `NS_E_INCOMPATIBLE_PUSH_SERVER`

0xC00D2F0C means the encoder/publisher reached an HTTP endpoint, but the response does not identify a compatible Windows Media push receiver. This is a server/protocol compatibility decision, not a failed socket write.

Evidence to collect

exact push URL, HTTP method and resolved endpoint;
request headers and the unmodified HTTP status line, response headers and small diagnostic body;
Server or protocol-identification fields and any proxy that may have generated the response;
timestamp/request ID that links the publisher trace to the receiving server log.

Focused test

Send the same push handshake to a known compatible WMS receiver and compare only the protocol response. A generic web server, reverse proxy error page or wrong publishing URL can accept TCP/HTTP while still failing this compatibility check.

Verification

Repeat the original push to the intended endpoint and require it to complete the WMS-specific handshake and create the publishing session. Do not count a successful ordinary HTTP request as proof.

Technical references

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