@jack-mills Thank you. This is the solution.
In short, during the installation process, the installer will ask for server address with the default to ‘fogserver’. You will need to replace ‘fogserver’ with the IP address of your FOG server (i.e. the http://<FOG_ADDRESS>/fog/management).
If you’ve already installed FOG client, in order to change the ‘fogserver’ variable, you need to remove then reinstall FOG to get the window prompt asking for the server address.
I’m not sure how I missed that in my notes. Thanks again.