HRESULT 0x80290409 (TPM_E_PCP_AUTHENTICATION

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TPM_E_PCP_AUTHENTICATION_IGNORED the Platform Crypto Device has ignored the authorization for the provider object, to mitigate against a dictionary attack.

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TPM_E_PCP_AUTHENTICATION_FAILED	TPM_E_PCP_POLICY_NOT_FOUND

TPM_E_PCP_AUTHENTICATION_IGNORED

TPM_E_PCP_AUTHENTICATION_IGNORED means the TPM ignored an authorization attempt as a dictionary-attack mitigation. This is a security throttle, not an invitation to retry rapidly.

What to check

Stop repeated PIN or authorization attempts and determine why the caller is sending an invalid authorization value.
Check the TPM lockout state and any organization policy governing recovery or reset.
Use the approved administrative recovery process; do not attempt to bypass lockout by clearing TPM data without confirming recovery-key availability.

Microsoft: Manage TPM lockout

Microsoft: TPM Group Policy settings

Microsoft: TPM and PCP error codes

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