I decided to test the PLEX IP interface by fixing an IP and then DHCP, first of all it broke and would not start the PLEX server, then I rebooted the FreeNAS and the PLEX server came up but with still same issue ERR_CONNECTION_REFUSED, so I returned the PLEX config to DHCP, and surprisingly everything worked…!!! Beats me… And now I find out what the bug is in the upgrade… I found the following and the update worked perfectly, pitty I have had months of issues that has taken up so much of my time on this… Getting to the point that PLEX is too fragile and a each time it breaks too much of liability to fix… seriously thinking of stopping my plex subscription!!!