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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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