When using Cloud Edge HA groups, you should understand under what conditions an HA group failover occurs, which include the following:
One or more of the monitor interfaces are down
Heartbeat or ping takeover thresholds reached
Active gateway does firmware update
Replacing an active gateway
Force takeover
If the HA group is in an abnormal state, force takeover will not happen.
When force takeover is triggered, the primary will become standby and the secondary will become active.