What does HRESULT 0x800C000A (INET_E_NO_VALID_MEDIA) mean?

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The server did not provide a valid recognized media type.

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INET_E_AUTHENTICATION_REQUIRED	INET_E_CONNECTION_TIMEOUT

INET_E_NO_VALID_MEDIA

INET_E_NO_VALID_MEDIA is a URL Moniker HRESULT. It means that the protocol handler could not recognize or accept the MIME type returned for the resource. The server can be sending a missing, malformed or unexpected Content-Type header, or the client may lack a handler for that media type.

What to check

Inspect the response Content-Type value and compare it with the actual payload format.
Correct server metadata and content negotiation rules rather than relying on file extensions alone.
Confirm that the required client protocol or MIME handler is registered and available.

Microsoft documentation

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