Palo Alto Failed To Fetch Device Certificate Tpm Public Key Match Failed Updated
From the firewall's management interface, test connectivity to Palo Alto's certificate server:
This is a well-documented bug affecting firewalls with TPM support. The issue occurs when temporary .pub_pem files accumulate in the /opt/pancfg/mgmt/ssl/private/ directory. These files are generated when the show device-certificate status command is executed, but due to a bug, they are never deleted. Over time, this accumulation can fill the disk partition to 100%, completely preventing the firewall from fetching new device certificates. On certain PAN-OS 12.1.x versions, this remains a known issue. Over time, this accumulation can fill the disk
Alex knew exactly what this meant. In the world of modern hardware firewalls, security isn't just about stopping bad traffic; it's about proving the device is who it says it is. In the world of modern hardware firewalls, security
If these steps fail, it indicates the existing invalid certificate is "stuck" in the TPM hardware. Palo Alto Networks Support (TAC) must gain through a challenge/response process to manually erase the old certificate from the TPM before a new one can be generated. TPM public key match failed - LIVEcommunity - 1239222 From the firewall's management interface
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