@agray Best to use the script (see the linked forum post on instructions) to change back your FOG IP to the one you have in the internet network (192.168.105.238). Then re-run the installer - hopefully running through. Now move your server back to the other network and again change its IP (now to 192.168.1.105) using the same script again.
No need for internet after the install. But if you ever need to re-run the installer… same procedure again.