If the "TPM public key match failed" error persists, it usually indicates a "stuck" certificate state that cannot be cleared through the standard GUI or CLI.
Large certificate packets can be dropped if the Management Interface MTU is too high. Setting the MTU to 1374 often resolves timeout-related fetch failures. If the "TPM public key match failed" error
In some cases, the firewall's configuration state is out of sync. Forcing a commit can re-initialize the management plane's certificate handler. configure -> commit force . 3. Adjust Management MTU In some cases, the firewall's configuration state is
You must open a support case with Palo Alto Networks . A support engineer must gain root access (via a challenge/response process) to erase the invalid certificate and hash keys before a new one can be fetched. Known Bug Reference Clear Existing Certificate State (Requires TAC)
If the fetch command simply times out without a clear "match failed" error, MTU is a likely culprit. set deviceconfig system mtu 1374 Follow this with a commit and retry the fetch. 4. Clear Existing Certificate State (Requires TAC)