DHCP Server IP in Transparent Mode?

Hi, OK, FG-60C, FOS v5.0,build0292 (GA Patch 9) in transparent mode (at a remote location unfortunately). I asked the tech on site to enable https administrative access on WAN1 so I could access the firewall for maintennace (other security measures in place to keep the bad guys out). Upon trying this, the tech reports that he gets an error about the configuration needing a " DHCP Server IP" address. He sent me a screen shot that not only shows the missing field but an option to enable and set up a DHCP server...??? See embedded image for more info. Default VDOM, no other configuration done and I had him do a factory reset from the CLI to " start over" (device not in use as of yet...fortunately). I have several other FG-60C system operating with the same build and I do not see this on them....any idea what' s up? It won' t let me set https admin access on WAN1 without this address.... Thanks....