Palo Alto Failed To Fetch Device Certificate Tpm Public Key Match Failed Updated ((link)) Guide
On the backend Customer Support Portal, TAC will clear the existing TPM mapping and regenerate clean claim keys for your hardware serial number.
On the firewall:
If your device is running PAN-OS 12.1.3 through 12.1.6 and fails to fetch, check if the /opt/pancfg/mgmt/ssl/private/ directory is full. On the backend Customer Support Portal, TAC will
Troubleshooting Palo Alto "Failed to fetch device certificate. TPM public key match failed" Error On the backend Customer Support Portal
Check the enrollment logs for the specific device serial number. On the backend Customer Support Portal, TAC will
Once the old data is purged on both ends, running request certificate fetch will bind the TPM chip cleanly to the cloud.