I tried to enable 6Ghz but still says disabled, current firmware is : OpenWrt SNAPSHOT r0-9be3e39 / LuCI Master 24.243.35685~648a099 by danpawlik I’m out of ideas slowly…
I had to start the AP manually as described here: [Banana BPI-R4] Wifi7 status - #102 by rmandrad - For Developers - OpenWrt Forum
Performance wasn’t good though. Try to set different channels or country in the hostapd config file if it doesn’t work. Better yet to wait a little bit more until people figure out the driver situation (check the same thread for progress).