Default GW is being dropped randomly
Similar behaviour to this issue - https://forum.opnsense.org/index.php?topic=18723.0
This should appear on regular basis (but randomly stops):
2022-11-18T11:42:54 Error opnsense /usr/local/etc/rc.newwanip: ROUTING: setting IPv4 default route to 100.100.100.187
2022-11-18T11:42:54 Error opnsense /usr/local/etc/rc.newwanip: ROUTING: IPv4 default gateway set to vtnet1
2022-11-18T11:42:54 Error opnsense /usr/local/etc/rc.newwanip: ROUTING: entering configure using 'vtnet1'
2022-11-18T11:42:54 Error opnsense /usr/local/etc/rc.routing_configure: The WAN monitor address is empty, skipping.
2022-11-18T11:42:54 Error opnsense /usr/local/etc/rc.routing_configure: ROUTING: keeping current default gateway '100.100.100.187'
2022-11-18T11:42:54 Error opnsense /usr/local/etc/rc.routing_configure: ROUTING: setting IPv4 default route to 100.100.100.187
2022-11-18T11:42:54 Error opnsense /usr/local/etc/rc.routing_configure: ROUTING: IPv4 default gateway set to vtnet1
2022-11-18T11:42:54 Error opnsense /usr/local/etc/rc.routing_configure: ROUTING: entering configure using defaults