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ERROR_IPSEC_IKE_LOAD_FAILED
State loading failed before the exchange could continue
This is a local IKE load-path failure rather than a protocol notification from the remote peer. Windows maintains separate keying-module state and IPsec SA state; failure to load the required IKE object can stop an exchange even when the network path and peer are reachable.
The broad wording means that the surrounding lifecycle is essential. Compare the status with service startup or reinitialization, policy application, soft-SA creation, and active SA enumeration. If many unrelated peers fail at the same time, suspect local IKEEXT or policy-state initialization before investigating each remote device separately.
What to inspect
- Check whether IKEEXT or Base Filtering Engine restarted immediately before the error.
- Verify that the active IPsec rules and crypto/authentication sets are present in the active store.
- Separate one-peer failures from host-wide failures; the latter point to local state loading or service health.
Get-NetIPsecMainModeSA
Get-NetIPsecRule
References
- Microsoft: Windows Filtering Platform API sets
- Microsoft: New-NetIPsecMainModeRule
- Microsoft: IPsec audit events
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