What does HRESULT 0xC121010E (WDSMCS_E_PACKET_HAS_SECURITY) mean?

 
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WDSMCS_E_PACKET_HAS_SECURITY

WDSMCS_E_PACKET_HAS_SECURITY is a Windows Deployment Services (WDS) Multicast Server result. It indicates that packet security metadata is present but does not match the security state expected by the receiving operation.

What to check

  • Compare namespace security settings on the sender and receiver rather than assuming they share defaults.
  • Check for stale sessions or cached provider configuration after changing the namespace security mode.
  • Use a new session when testing a security-policy change so old packet state cannot be mixed in.

Microsoft documentation on the Windows Deployment Services Multicast Application Protocol


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