link-monitor settings accepted but not applying

Hi All,

I've just configured link-monitor to allow failover to WAN2 when internet access through WAN1 is unavailable.

I've applied this config without any errors, but it doesn't appear to display all the settings.

config system link-monitor (link-monitor) # edit "WAN_Failover" (link-monitor) # set srcintf wan1 (link-monitor) # set server "8.8.8.8" "4.2.2.1" (link-monitor) # set protocol ping (link-monitor) # set gateway-ip xxx.xxx.xx9.17 (link-monitor) # set interval 500 (link-monitor) # set failtime 5 (link-monitor) # set recoverytime 5 (link-monitor) # set update-static-route enable (link-monitor) # set status enable

The resulting config is displayed below.

FW1 # show system link-monitor config system link-monitor     edit "WAN1_Failover"         set srcintf "wan1"         set server "8.8.8.8" "4.2.2.1"         set gateway-ip xxx.xxx.xx9.17     next end

As you can see, the following parameters are missing.

(link-monitor) # set protocol ping (link-monitor) # set interval 500 (link-monitor) # set failtime 5 (link-monitor) # set recoverytime 5 (link-monitor) # set update-static-route enable (link-monitor) # set status enable

The firewall is currently on v7.2.8.

On testing, WAN failover works as expected, but I have noticed this System Event: 

Static route on interface wan1 may be added by link-monitor WAN1_Failover. Route: (xxx.xxx.xx9.22->8.8.8.8 ping-up) (xxx.xxx.xx9.22->4.2.2.1 ping-down)

It reports that it can ping 8.8.8.8 but not 4.2.2.1.

I can ping 4.2.2.1 from xxx.xxx.xx9.22.

Thoughts anyone?