Fortigate HA Cluster Out-of-Sync 100F

Issue After initially setting up the Fortigate 100F HA cluster, we got this annoying “out-of-sync” error, dug into it, and found several issues related to the Fortinet firmware version and initial configuration differences. This post is to document the process of troubleshooting and some of the configurations for the Fortinet HA firewall cluster. Environment 2x […]

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