Hello, I am also having certain problems with the WiFi on this device. I set up WPA3 and AX thanks to this thread I created.
My problem is the opposite. The 2.4GHz radio works fine, but the 5GHz is emitting, but no device can connect to it after password exchange.
Steps tried:
- Downgraded to WPA2 and no security.
- Downgraded to 'VHT40'.
- After each modification, applied configuration and rebooted device.
EDIT: I propose backing up your /etc/conf/wireless somewhere and check if both frequencies work with the basic configuration in the linked thread. If the basic configuration works, its something with your configuration. If not, its a problem with the builds for this device.