Technical Tip: The FortiGate HA primary unit shows Status: Unknown after changing the HA Group ID

[caunon]

Description	This article describes the situation where the FortiGate HA primary unit displays 'Status: Unknown' under System -> HA -> Status.
Scope	FortiGate v7.4.x.
Solution	After changing FortiGate’s Group ID via GUI under  System -> HA, choose the Primary unit -> Edit -> High Availability -> Cluster Settings -> Group ID.    Or change FortiGate’s Group ID via CLI command for both HA units. FGT # config system ha FGT (ha) # set group-id 156 FGT (ha) # end FGT # The FortiGate HA primary unit may display 'Status: Unknown' via the GUI under System -> HA -> Status.   For a workaround with a temporary fix: Restart the hasync daemon on the secondary device: FGT # fnsysctl killall hasync Or reboot the secondary device: FGT # execute reboot For a permanent fix: It is necessary to upgrade the FortiGate to v7.4.9, v7.6.5, or above with reference to bug ID 1170958: FortiOS 7.4.9 Release Notes - Resolved issues