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

"failed to fetch device certificate TPM public key match failed"

: The device certificate might be expired, not properly installed, or there might be a mismatch with the certificate authority (CA). "failed to fetch device certificate TPM public key

"It's the Trusted Platform Module (TPM)," Alex muttered to himself. not properly installed

Troubleshooting “Failed to Fetch Device Certificate – TPM Public Key Match Failed” (Updated) "failed to fetch device certificate TPM public key

If the fetch times out, try lowering the Management Interface MTU (e.g., to 1374 ) in Device > Setup > Interfaces to ensure communication with the CSP isn't being fragmented and dropped.

Observed Symptoms