@Tony Thank you. I now know that I needed to set my LAN IP address to the address of the TP Link (192.168.3.1), and set the IPv4 IP Address as a Static IP that corresponded with the main (ASUS)...

Hello, I'm trying to set up a completely separate network for my kids to insulate them from the computers I have to use for work. I currently have an ASUS as my "main" router and am attempting to use...