FYI, I also have a TP-Link TL-SG116E switch that has DHCP abilities (currently turned off) but that doesn't seem to have any DNS settings.

[Note: The router's hardware version is actually "Archer AX21 v1-20", but the forum won't let me select that] tl;dr - My AX1800 DHCP settings have a DNS server that's ignored. I have an AT&T modem....

Thanks @Tony Yeah, I was playing around with the settings, and doing some research, and had changed the operation mode to Access Point after I wrote the original post. Although, I still had the cable...

I just got the TP-Link AX1800 (the manual says AX1800 / AX20, the router's firmware tab says AX21, so....), and I want to use it as basically an Access Point, but I also want to be able to get to the...