@TP-Link sent thank you

Hello, So I am using 3 M9 Plus Decos - all on firmware 1.4.3 Build 20200921 Rel. 42500 The mobile app and the web interface both say I am on the latest firmware. The TP-Link Support page says...

TheoTM wrote I still have the old fashioned wifi setup in my house, with on the ground floor the modem with an external wired wifi access point and on the second floor a second wired access point....