What does HRESULT 0xC00D4285 (MF_E_NET_SERVER_ACCESSDENIED) mean?

 
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MF_E_NET_INCOMPATIBLE_PUSHSERVER MF_E_NET_PROXY_ACCESSDENIED

MF_E_NET_SERVER_ACCESSDENIED

MF_E_NET_SERVER_ACCESSDENIED means the origin media server refused access. It may be a credential, authorization, ACL, token, or publishing-point policy issue.

What to check for MF_E_NET_SERVER_ACCESSDENIED

  • Confirm the identity and credential flow used for the exact URL.
  • Check server authorization logs and content permissions.
  • When using a Media Foundation app, provide an appropriate credential manager rather than assuming the platform supplies credentials automatically.

Microsoft: Network source authentication

Microsoft: Authentication and authorization with Windows Media Services

Microsoft: Networking in Media Foundation

Diagnostic interpretation

This result has the HRESULT value 0xC00D4285. AllStat records the condition as “The Windows Media server is denying access. The username and/or password might be incorrect.%0”.

Evidence to capture

  • Capture any IErrorInfo text, activity identifier, event-log entry, and subsystem trace that mentions this result or the mf / net / server / accessdenied operation.
  • check the documented return contract of the specific API because the same HRESULT can require different recovery in different interfaces.

Retry and recovery

Retry this result only when the owning API documents a transient state or after the condition described as “The Windows Media server is denying access. %0” has changed.


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