Palo Alto Failed To Fetch Device Certificate Tpm Public Key Match Failed !new! Jun 2026

A TPM is a secure crypto-processor that is designed to perform cryptographic operations. It's used for securing hardware through integrated cryptographic keys.

The most common technical culprit is a confirmed bug (PAN-313623) affecting TPM-enabled devices. On these devices, executing the show device-certificate status CLI command generates temporary .pub_pem files in the directory /opt/pancfg/mgmt/ssl/private/ . Due to a software flaw, the system fails to delete these files after use. Over time, these files accumulate, fill the disk partition to 100% capacity, and directly prevent any new device certificate from being fetched.

(needs reboot, backup first):

If this is the cause, a reboot of the firewall will clear the temporary directory, allowing a fresh fetch attempt. The permanent fix is to upgrade to a PAN-OS version where PAN-313623 is resolved. A TPM is a secure crypto-processor that is

: For newly provisioned or Return Merchandise Authorization (RMA) replaced hardware (such as PA-440, PA-450, or PA-1420 models), the factory-injected TPM public key might not have properly registered in Palo Alto's manufacturing and licensing database. Step-by-Step Diagnostic Workflow

Here is a comprehensive guide to understanding, diagnosing, and fixing this Trusted Platform Module (TPM) error. Understanding the Root Cause

Websites like Reddit (r/netsec), Stack Overflow, or specific cybersecurity forums might have discussions or solutions related to your issue. (needs reboot, backup first): If this is the

A global bug has been noted where certificates on the device do not match those in the Customer Support Portal, often affecting newer models like the PA-440 during Zero Touch Provisioning (ZTP). Corrupt Certificate Store:

If a commit force doesn't work, the next step is to generate a fresh OTP.

If all else fails, reset the TPM entirely: or PA-1420 models)

Try these common fixes in order, starting with the least invasive: TPM public key match failed - LIVEcommunity - 1239222

Get-TpmEndorsementKeyInfo