We upgraded our FAZVM to 6.0.1 from 5.6.4 and needed to roll back. Two problems after the upgrade:
FAZ ran fine at the beginning but suddenly FortiGates stopped sending logs to FAZ until we re-entered the credentials for each firewall on the Device Manager page on the FAZ admin GUI. This happened twice and was the main reason we rolled back to 5.6.4.
A collection of "Upload log file failed" warning messages showed up from time to time.[/ol]
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