Plex (Beta): No DCHP Install,

[smittychifi]

On a brand new TrueNAS 12 install. Deluge, Sonarr, Radarr all installed painlessly, but Plex refusing to play nice on my system.

Simple install with DHCP will not work. Doesn't pick up an IP.

Was able to install via
DHCP - no
NAT - yes

But after install Plex gives the "Not authorized // You do not have access to this server" notice on what should be the setup screen.

Show : Plex console log

ELF ldconfig path: /lib /usr/lib /usr/lib/compat /usr/local/lib /usr/local/lib/compat/pkg /usr/local/lib/compat/pkg
32-bit compatibility ldconfig path: /usr/lib32
Starting Network: lo0 epair0b.
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
options=680003<RXCSUM,TXCSUM,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
inet 127.0.0.1 netmask 0xff000000
groups: lo
nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
epair0b: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=8<VLAN_MTU>
ether 02:17:b6:31:41:eb
hwaddr 02:ba:d8:c5:e5:0b
inet 172.16.0.14 netmask 0xfffffffc broadcast 172.16.0.15
groups: epair
media: Ethernet 10Gbase-T (10Gbase-T <full-duplex>)
status: active
nd6 options=1<PERFORMNUD>
add host 127.0.0.1: gateway lo0 fib 0: route already in table
add host ::1: gateway lo0 fib 0: route already in table
add net fe80::: gateway ::1
add net ff02::: gateway ::1
add net ::ffff:0.0.0.0: gateway ::1
add net ::0.0.0.0: gateway ::1
Creating and/or trimming log files.
Starting syslogd.
Clearing /tmp (X related).
Updating motd:.
Updating /var/run/os-release done.
Starting plexmediaserver_plexpass.
Starting cron.

Show : Plex config.json

{
"basejail": 1,
"boot": 1,
"defaultrouter": "172.16.0.1",
"host_hostname": "Plex",
"host_hostuuid": "Plex",
"ip4": "new",
"ip4_addr": "vnet0|172.16.0.2/30",
"jail_zfs_dataset": "iocage/jails/Plex/data",
"last_started": "2021-11-12 01:54:32",
"nat": 1,
"nat_forwards": "tcp(32400:32400)",
"plugin_name": "plexmediaserver-plexpass",
"plugin_repository": "https://github.com/freenas/iocage-ix-plugins.git",
"release": "12.2-RELEASE-p11",
"type": "pluginv2",
"vnet": 1,
"vnet0_mac": "0217b63141ea 0217b63141eb"
}

I tried to disable NAT and add an unused, static IP (192.168.1.128), but when configured this way, Plex simply doesn't start at all. It spins and stops after about 10 seconds.

Any ideas?! Thanks.
Unsure what to try next.