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

This article was accurate as of PAN-OS 11.0 and Windows 11 23H2. Always test TPM changes in a non-production group before scaling.

If you are running PAN-OS versions like 12.1.x, you may be hitting bug . The temporary public key storage fails to self-clean, causing renewals to break.

The error "" typically occurs on Palo Alto Networks firewalls with a Trusted Platform Module (TPM) , such as PA-400 series or VM-Series, when a mismatch exists between the locally stored TPM key and the device certificate stored in the cloud. Primary Causes This article was accurate as of PAN-OS 11

: If manual attempts fail, the existing invalid certificate may need to be deleted from the root directory. Because this requires root access to the device (a challenge/response process), you must contact Palo Alto Support to have them clear the old certificate and generate a new one with a fresh One-Time Password (OTP).

SSH into the firewall and tail the GP logs: The temporary public key storage fails to self-clean,

To help narrow down the problem, what and PAN-OS version is the firewall currently running? If this is part of an active disruption, Share public link

Windows Hello for Business uses the TPM for biometric login. In some builds (Windows 10 21H2+, Windows 11), the NGC (Next Generation Credential) service locks TPM slots, preventing GlobalProtect from accessing the required key. The result: "public key match failed." Because this requires root access to the device

Work through the following steps in order. This process moves from basic checks to more advanced solutions, many of which may require collaboration with Palo Alto Networks Support.

In many cases, particularly with the TPM public key mismatch error, the firewall must be placed into a "root access" mode by Palo Alto Networks TAC. This is a secure process involving a challenge-and-response mechanism. Once in maintenance mode, a support engineer can delete the corrupted local certificate and regenerate it. One community member shared, "PaloAlto solved the problem for me by deleting the existing certificate and generating a new one. It needed root access to the firewall". This remains the most definitive solution for persistent key mismatches.