Monitor single WAN dropouts

Hi,

I would like to monitor and log, via gateway ping, possible ISP dropouts on a single WAN connection. The setup is 2xFG100D in active-passive HA, with a single WAN. Running 5.4.1.

I have seen a monitor setup for dual WAN, where an ip to ping is added under 'WAN Status Check'. If I try this with a single WAN, I get no events at all. I don't want to take any action in case of a wan failure, except logging it.

Please advice how to do this, thanks

/Boris