Palo Alto Failed To - Fetch Device Certificate Tpm Public Key Match Failed

Sometimes, Windows’ TPM key isolation service causes the public key mismatch. Apply this registry change (backup first):

HKLM\SYSTEM\CurrentControlSet\Services\TPM\Parameters
Create DWORD: "IgnoreKeyMismatch" = 1

Note: This is a diagnostic workaround, not a permanent fix. Use only to confirm the root cause. Sometimes, Windows’ TPM key isolation service causes the

For specific research papers or documentation on this topic, you might want to explore: Note: This is a diagnostic workaround, not a permanent fix

If all else fails, reset the TPM entirely: Note: This is a diagnostic workaround