Troubleshooting Tip: HA setting is lost when upgrade from v7.4.11 to v7.6.6

Description

This article describes an HA configuration loss where FortiGate version 7.4.11 was upgraded to version 7.6.6 and HA mode was changed to Standalone. The CLI commands 'diagnose debug config-error-log read' show an error messages:

>>> "set" "hbdev" "ha1" "0" "ha2" "0" @ global.system.ha:value parse error (error -651)
>>> "end" @ global.system.ha:failed command (error -651)

Scope

FortiGate v7.6.4/v7.6.6.

Solution

To check the HA heartbeat interface VRF status:

config system interface

    edit "ha1"
        set vdom "root"
        set vrf 1 <-----------------Affected HA setting lost during upgrade to FortiGate 7.6.6 
        set ip x.x.x.x
        set type physical
        set snmp-index 5
   
    edit "ha2"
        set vdom "root"
        set vrf 1 <-----------------Affected HA setting lost during upgrade to FortiGate 7.6.6 
        set ip x.x.x.x

This issue is under investigation, and a workaround is configured for the HA heartbeat interface with 'VRF 0'.