Thanks for responding John!
The new router (Virgin Hub3 - UK version) uses the same ip scheme as my old Virgin Super Hub 2, and I have reserved all the ip addresses used by FreeNAS. UPnP is also enabled.
However, I've been reading some posts regarding the Hub3, which are not great. You can't change the ip ranges, but then I using the standard anyway.
Router IP: 192.168.0.1
Subnet Mask: 255.255.255.0
I can ping 8.8.8.8 within jail and FreeNas, but not 
www.google.com from a jail.
[root@freenas ~]# ping 8.8.8.8                                                 
PING 8.8.8.8 (8.8.8.8): 56 data bytes                                           
64 bytes from 8.8.8.8: icmp_seq=0 ttl=58 time=18.605 ms                         
64 bytes from 8.8.8.8: icmp_seq=1 ttl=58 time=17.474 ms                         
64 bytes from 8.8.8.8: icmp_seq=2 ttl=58 time=20.479 ms                         
64 bytes from 8.8.8.8: icmp_seq=3 ttl=58 time=23.287 ms                         
^C                                                                             
--- 8.8.8.8 ping statistics ---                                                 
4 packets transmitted, 4 packets received, 0.0% packet loss                     
round-trip min/avg/max/stddev = 17.474/19.961/23.287/2.200 ms                   
[root@freenas ~]#
[root@freenas ~]# ping www.google.com                                           
PING 
www.google.com (62.252.115.157): 56 data bytes                             
64 bytes from 62.252.115.157: icmp_seq=0 ttl=59 time=21.062 ms                 
64 bytes from 62.252.115.157: icmp_seq=1 ttl=59 time=17.598 ms                 
64 bytes from 62.252.115.157: icmp_seq=2 ttl=59 time=20.870 ms                 
^C                                                                             
--- 
www.google.com ping statistics ---                                         
3 packets transmitted, 3 packets received, 0.0% packet loss                     
round-trip min/avg/max/stddev = 17.598/19.843/21.062/1.590 ms                   
[root@freenas ~]#                                                              
                     
root@plexmediaserver_1:/ # ping 8.8.8.8                                         
PING 8.8.8.8 (8.8.8.8): 56 data bytes                                           
64 bytes from 8.8.8.8: icmp_seq=0 ttl=58 time=21.393 ms                         
64 bytes from 8.8.8.8: icmp_seq=1 ttl=58 time=33.019 ms                         
64 bytes from 8.8.8.8: icmp_seq=2 ttl=58 time=19.133 ms                         
^C                                                                             
--- 8.8.8.8 ping statistics ---                                                 
3 packets transmitted, 3 packets received, 0.0% packet loss                     
round-trip min/avg/max/stddev = 19.133/24.515/33.019/6.084 ms                   
root@plexmediaserver_1:/ #
root@plexmediaserver_1:/ # ping www.google.com                                 
ping: cannot resolve 
www.google.com: Host name lookup failure                   
root@plexmediaserver_1:/ #
PLEX ifconfig output:
root@plexmediaserver_1:/ # ifconfig                                             
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384               
        options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>                   
        inet6 ::1 prefixlen 128                                                 
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1                             
        inet 127.0.0.1 netmask 0xff000000                                       
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>                               
epair4b: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500   
        options=8<VLAN_MTU>                                                     
        ether 02:b6:c3:00:0f:0b                                                 
        inet 192.168.0.90 netmask 0xffffff00 broadcast 192.168.0.255           
        nd6 options=9<PERFORMNUD,IFDISABLED>                                   
        media: Ethernet 10Gbase-T (10Gbase-T <full-duplex>)                     
        status: active                                                         
root@plexmediaserver_1:/ #    
FreeNAS CLI output:
bge0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 15
00                                                                             
        options=c0099<RXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,VLAN_HWTSO,LINK
STATE>                                                                         
        ether d0:bf:9c:45:fc:b8                                                 
        inet 192.168.0.6 netmask 0xffffff00 broadcast 192.168.0.255             
        nd6 options=9<PERFORMNUD,IFDISABLED>                                   
        media: Ethernet autoselect (1000baseT <full-duplex>)                   
        status: active                                                         
bge1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500     
        options=c019b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,VLA
N_HWTSO,LINKSTATE>                                                             
        ether d0:bf:9c:45:fc:b9                                                 
        nd6 options=9<PERFORMNUD,IFDISABLED>                                   
        media: Ethernet autoselect (none)                                       
        status: no carrier                                                     
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384               
        options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>                   
        inet6 ::1 prefixlen 128                                                 
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3                             
        inet 127.0.0.1 netmask 0xff000000                                       
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>                               
bridge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 02:eb:ee:cc:a6:00                                                 
        nd6 options=1<PERFORMNUD>                                               
        id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay 15             
        maxage 20 holdcnt 6 proto rstp maxaddr 2000 timeout 1200               
        root id 00:00:00:00:00:00 priority 32768 ifcost 0 port 0               
        member: epair7a flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>           
                ifmaxaddr 0 port 12 priority 128 path cost 2000                 
        member: epair4a flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>           
                ifmaxaddr 0 port 9 priority 128 path cost 2000                 
        member: epair8a flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>           
                ifmaxaddr 0 port 13 priority 128 path cost 2000                 
        member: epair6a flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>           
                ifmaxaddr 0 port 11 priority 128 path cost 2000                 
        member: epair5a flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>           
                ifmaxaddr 0 port 10 priority 128 path cost 2000                 
        member: epair3a flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>           
                ifmaxaddr 0 port 8 priority 128 path cost 2000                 
        member: epair2a flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>           
                ifmaxaddr 0 port 7 priority 128 path cost 2000                 
        member: epair1a flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>           
                ifmaxaddr 0 port 6 priority 128 path cost 2000                 
        member: epair0a flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>           
                ifmaxaddr 0 port 5 priority 128 path cost 2000   
member: bge0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>             
                ifmaxaddr 0 port 1 priority 128 path cost 20000                 
epair0a: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu
1500                                                                           
        options=8<VLAN_MTU>                                                     
        ether 02:ff:20:00:05:0a                                                 
        nd6 options=1<PERFORMNUD>                                               
        media: Ethernet 10Gbase-T (10Gbase-T <full-duplex>)                     
        status: active                                                         
epair1a: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu
1500                                                                           
        options=8<VLAN_MTU>                                                     
        ether 02:ff:20:00:06:0a                                                 
        nd6 options=1<PERFORMNUD>                                               
        media: Ethernet 10Gbase-T (10Gbase-T <full-duplex>)                     
        status: active                                                         
epair2a: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu
1500                                                                           
        options=8<VLAN_MTU>                                                     
        ether 02:ff:20:00:07:0a                                                 
        nd6 options=1<PERFORMNUD>                                               
        media: Ethernet 10Gbase-T (10Gbase-T <full-duplex>)                     
        status: active
epair3a: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu
1500                                                                           
        options=8<VLAN_MTU>                                                     
        ether 02:ff:20:00:08:0a                                                 
        nd6 options=1<PERFORMNUD>                                               
        media: Ethernet 10Gbase-T (10Gbase-T <full-duplex>)                     
        status: active                                                         
epair5a: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu
1500                                                                           
        options=8<VLAN_MTU>                                                     
        ether 02:ff:20:00:0a:0a                                                 
        nd6 options=1<PERFORMNUD>                                               
        media: Ethernet 10Gbase-T (10Gbase-T <full-duplex>)                     
        status: active                                                         
epair6a: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu
1500                                                                           
        options=8<VLAN_MTU>                                                     
        ether 02:ff:20:00:0b:0a                                                 
        nd6 options=1<PERFORMNUD>                                               
        media: Ethernet 10Gbase-T (10Gbase-T <full-duplex>)                     
        status: active 
epair8a: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500                                               
        options=8<VLAN_MTU>                                                                                                         
        ether 02:ff:20:00:0d:0a                                                                                                     
        nd6 options=1<PERFORMNUD>                                                                                                   
        media: Ethernet 10Gbase-T (10Gbase-T <full-duplex>)                                                                         
        status: active                                                                                                             
epair4a: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500                                               
        options=8<VLAN_MTU>                                                                                                         
        ether 02:ff:20:00:09:0a                                                                                                     
        nd6 options=1<PERFORMNUD>                                                                                                   
        media: Ethernet 10Gbase-T (10Gbase-T <full-duplex>)                                                                         
        status: active                                                                                                             
epair7a: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500                                               
        options=8<VLAN_MTU>                                                                                                         
        ether 02:ff:20:00:0c:0a                                                                                                     
        nd6 options=1<PERFORMNUD>                                                                                                   
        media: Ethernet 10Gbase-T (10Gbase-T <full-duplex>)                                                                         
        status: active