No, this was not how I had it set up. I had it set up with all of the decos going to the switch, which per https://www.tp-link.com/us/support/faq/1794/ does NOT work. I've gone back and set it up...

Hello, I recently switched from xfinity to ATT fiber. I've been running a Deco x60 mesh system with 1 primary router and 2 APs connected via ethernet backhaul. I have both a wired and wifi network...