Apparently there is an issue between Zabbix and Fping5:
https://www.zabbix.com/forum/zabbix-troubleshooting-and-problems/413476-simple-check-icmppingloss-is-always-0
Is it possible to upgrade Zabbix package to 5.0.5 (available on FreeBSD ports since 1 week) on OPNSense repo?
Was added Tuesday afternoon to our tree. But 20.7.5 is based on a build from Tuesday morning. So that will have to wait until 20.7.6.
Cheers,
Franco