I posted earlier about how to bridge 2 TP Routers but I'm not sure that is what I need.

I am trying to connect 2 TP routers, an AX73 v1 as primary and an AX1800 v 3.6 as secondary.

I need to link the AX1800 to the primary to the AX73 using the wireless connection.  I still need the wired connection in the AX1800 active for a security system that transmits emails to notify me of activity at a slightly remote location.

Any ideas?