Using FortiAnalyzer units running older versions
When using FortiOS 6.0.5 with FortiAnalyzer units running 5.6.5 or lower, or 6.0.0-6.0.2, FortiAnalyzer might report increased bandwidth and session counts if there are sessions that last longer than two minutes.
For accurate bandwidth and session counts, upgrade the FortiAnalyzer unit to 6.0.5.