how do I turn off the DHCP or configure settings on my second router so I can connect 2 routers (Lan to Lan) together?

You set the LAN settings to not use DHCP not the internet settings!

In the INTERNET settings you set an IP address of the FIRST ROUTER LAN (like 192.168.1.X using a last number that is static). The DHCP settings that you need to turn off are not on the INTERNET side, they are on the LAN (local network) setup pages.

PS once this is done, you will not use the Internet/WAN port on the 2nd router, you will connect to one of the four computer ports from router one! These settings take the routing function of router two and turn it off. It works as a switch / access point.

You must NOT. The seconf router will try to pass all traffic to its; oen wan pott. And there can necer be a reasin ti. You have no cluse about networking, so qhy not explain qhat you think you want to do.

What you're looking at would be how it sets its own IP address, not whether it assigns them.

You may find it elsewhere in the settings, or you might find if you plug a cable into another Ethernet Port than the WAN one, that it sets the DHCP on its own to off.

you dont have to change any settings....

just connect the internet port of one router to one of the outputs of the other router....