What does Windows error code 11033 (WSA_IPSEC_NAME_POLICY_ERROR) mean?

 
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WSA_SECURE_HOST_NOT_FOUND ERROR_IPSEC_QM_POLICY_EXISTS

WSA_IPSEC_NAME_POLICY_ERROR

WSA_IPSEC_NAME_POLICY_ERROR points to Windows name-based IPsec policy processing. The failure occurs while adding policy associated with a name; it is not simply a rejected TCP connection and does not prove that the remote service is offline.

Why hostname context is important

Name-based policy links security decisions to a DNS name rather than only to a fixed destination address. The resolved addresses, applicable IPsec rules, and policy state must remain consistent enough for Windows to install the required policy.

What to investigate

  • The exact hostname and addresses produced by resolution at the time of failure.
  • Applicable IPsec, domain, and name-resolution policy.
  • Policy refresh or Group Policy changes around the event.
  • IKE/AuthIP and IPsec operational logs for a more specific policy or negotiation failure.
  • Whether the issue follows one FQDN, one network profile, or the entire machine.

Hard-coding an IP address changes the security model and can defeat name-based policy intent. Preserve the hostname and policy evidence instead of treating the code as a generic connectivity error.

Microsoft: system error codes · Microsoft: IPsec configuration · Microsoft: NRPT


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