Возможно, Вы уже видели это решение:
And we have a solution thanks to David Meier. Stop all jails, edit one jail's properties, go to Network Properties, set vnet_default_interface to auto, from none. Save - you may need to uncheck and recheck DHCP Autoconfigure in Basic before Save becomes available. Start your jail(s).
In his testing, making this change on one jail solved it for all.
https://forums.freenas.org/index.ph...-release-has-arrived.71699/page-9#post-513060