2. Please see attached screen shots. You will see that "enable" is grayed out, not orange
Have you tried the following combination to see if OPNsense doesn't reboot?Check Allow UPnP Port Mapping, uncheck Allow NAT-PMP Port Mapping, check enable and then save.
root@OPNsense:~ # /usr/local/sbin/miniupnpd -d -f /var/etc/miniupnpd.conf -P /var/run/miniupnpd.pidError reading configuration file /var/etc/miniupnpd.conf
ext_ifname=igb0port=2189listening_ip=igb1listening_ip=igb3listening_ip=igb2secure_mode=yespresentation_url=https://10.200.200.1/uuid=4bfsvd1c-3391-8sfda6-1c1d-3525sdf50ae0bserial=4BD1042Cmodel_number=20.1.3allow 1024-65535 10.200.200.110/32 1024-65535allow 1024-65535 10.200.200.111/32 1024-65535allow 1024-65535 10.100.100.100/32 1024-65535allow 1024-65535 10.0.0.100/32 1024-65535deny 0-65535 0.0.0.0/0 0-65535enable_upnp=yesenable_natpmp=noclean_ruleset_interval=600min_lifetime=120max_lifetime=86400
<installedpackages> <miniupnpd> <config> <enable>1</enable> <enable_upnp>1</enable_upnp> <permdefault>1</permdefault> <ext_iface>wan</ext_iface> <download/> <upload/> <overridewanip/> <permuser1>allow 1024-65535 10.200.200.110/32 1024-65535</permuser1> <permuser2>allow 1024-65535 10.200.200.111/32 1024-65535</permuser2> <permuser3>allow 1024-65535 10.100.100.100/32 1024-65535</permuser3> <permuser4>allow 1024-65535 10.0.0.100/32 1024-65535</permuser4> <permuser5/> <permuser6/> <permuser7/> <permuser8/> <iface_array>lan,opt2,opt1</iface_array> </config> </miniupnpd> </installedpackages>