Configuring *.toml files

Hi I am trying to get a local server up and running. I have successfully got the Gateway Bridge, Network Server and Application Server loaded and Running. My Microchip Gateway Core board is connected to the laptop running the Chirpstack stack through a basic ethernet switch. Within the Microchip user interface I can retrieve the gateway ID and the IP address and Subnet mask(s). I am not sure where they are inserted in the *.toml files. Can you please guide me on this? I get no data at the server layer and through the app I cannot see the Microchip gateway. Any help would be greatly appreciated. Even if someone can send me successful *.toml files that I could reference.

Thanks Much
Rob K