@Minv You can download the firmware from the link below. https://community.tp-link.com/en/home/forum/topic/793908

@Rasel_Dhaka-BD You can try now 1.7.0 official firmware Early Access

@MERP If u set Reboot Schedule it will be very helpful for you so your Decos will choose best channel everyday.

@MERP Try Network Optimization feature once a day or you can turn ON Reboot Schedule so your Decos will reboot everyday at same time before you wake up.

@n0zkl3r Change your Deco into AP Mode

@EnzoBarbier You can install this firmware 1.7.0 manually by using Web UI on your browser on phone or PC/Laptop and then you will able to see Connection Preference option in Deco App and then you...