I just installed from SNG7-FPBX-64bit-1703-1.iso (downloaded from the Asia server which didn’t have the 1706 file) using the Recommended option. The install completed successfully and after the reboot and logging in to the console as root the welcome message showed the eth0 interface with no ip address. Trying ifconfig eth0 up created an ipv6 address but ipv4.
Looking at the ifcfg-eth0 file showed onboot=no which I changed to “yes” and following a reboot the ipv4 address was displayed OK. The interface was set to use DHCP.
I’ve not found a reference to this elsewhere on the forum, so I’m putting it here fwiw in case anyone else runs into it.