Hi Tony, Thanks - this worked. Interestingly, when I posed the "same" question to tplink customer support this is what I got:

I have the following setup: Router 1 (Archer A7) connected to Modem (Router 1 IP: 192.168.1.1/24) Router 2(Archer A7) WAN port is connected to the LAN port of Router 1 (Router 2 IP: 192.168.2.1/24)...