Configure single Deco in AP mode and conect via wired connection.

I have M5 network at home. I see throughput speed for any davice, but realtime throughput. No connection speed. Maybe translation not good: 1.8.1 Jan 17, 2019 1. Supported the coming models Deco E4...

Hi TP-LINK Support, In new version of app with M9 you can see client connection speed, why in other models no?

This speed test you made on Deco APP?

First you need configure all decos via wifi, one main Deco with cable at router and all other units via wifi. After this. turn off 2nd unit and wire, turn on and "voiala"

you have others routers into your network? if yes, check if DHCP is off.