today, I noticed that Windows 11 is the problem with the firmware update/upgrade program. I used an older Windows 10 laptop with a long ethernet kabel in the Deco M9 and the upgrades did work....

@TP-Link I tried to upgrade the firmware to 1.5.3 as you mentioned (methode 3). but i't is not excepting my TP-Link id. I know I'm using the right network, right ID and password (incl....

As soon as I add a second M9 to the network the problem, NOT being able to reconnect (for a couple of minutes), starts. as soon as I remove the second and third M9 the wifi is stable again. use case:...