I want to post my similar predicament with the Deco X20: https://community.tp-link.com/us/home/forum/topic/270448?page=1 The lack of information about the differences in the hardware and/or firmware...

I am considering getting one of these routers to load balance (or fail-over) across two WAN devices from two ISP connections. In this use case each of the WAN devices creates a local LAN, which is...