Palo Alto | Failed To Fetch Device Certificate Tpm Public Key Match Failed Updated

Windows 11 22H2 changed the default TPM key storage algorithm from RSA-2048 to ECC (elliptic curve) for new requests. The existing certificates were RSA. The TPM attempted to present the new ECC public key, but the old certificate still contained the RSA public key.

Get-Tpm Expected: TpmReady: True . If False , clear or initialize the TPM via BIOS. Windows 11 22H2 changed the default TPM key

A Deep Dive into TPM, Device Certificates, and Authentication Failures and Authentication Failures