FORTIGATE - Diagnose Debug HA

Fortigate synchronization debugging

Diag Debug HA

execute ha synchronize stop
diag debug reset
diag debug enable
diag debug application hasync -1
diag debug application hatalk -1
execute ha synchronize start

For seeing communication between HA ports :

diagnose hardware device nic <heart beats interface>
diagnose sniffer packet port_ha "" 4

Usefull Links

• https://community.fortinet.com/t5/FortiGate/Troubleshooting-Tip-How-to-troubleshoot-HA-synchronization-issue/ta-p/193422
• https://community.fortinet.com/t5/FortiClient/Technical-Tip-Collecting-information-for-HA-issues/ta-p/193683