@akostadinov If most of your devices support wpa3, they seems to be modern and/or expensive. Try a recent Asus router. They are no expensive and have wpa3 included. I use my C6 as a wifi bridge for a...

@akostadinov Why do you need wpa3? are you in a dangerous environment? are the resto of your devices ready for wpa3? Most "compatible" devices aren't really fully compatible. WPA2 with a short key...

@akostadinov I have mine with OpenWRT at my parents home, and it is ok. It has enough memory to run it smoothly.

@akostadinov Latests firms have OneMesh: https://www.tp-link.com/es/support/download/archer-c6/v2/#Firmware

@Lahiri Thank you. I will give it a try, and forget official firmware forever.

@Lahiri Is it ok in both bands? My C6 with Openwrt is slow in 5 GHz (as told in openwrt site).