@TP-Link Dear TP-Link: Good to hear that you finally decided to add this long-awaited function. Kindly give us a timetable. In less than a week since I post the previous message, I had to reboot my 3rd Deco again to connect it to the nearest signal source. I find myself constantly checking the Deco app to make sure everything stays in the right place. This can't be what you imagine your products to perform, right? BTW, "Network Optimization" doesn't work, I have tried it multiple times and it'd never fix anything unless I reboot.

@triptomoon Just got the x20 three pack, updated all the firmware and have the same problem. Three story townhouse with the main in the basement, and one on the first floor and one on the second floor. The one on the second floor only wants to connect to the one in the basement. Needless to say performance on the second floor is lousy. Tried rebooting the individual units in various orders but no luck. Was evaluating these vs Eero Pro 6 but with it chained like this performance is about a third slower. Hope someone has a fix.