There is impossible to save after change WiFi Country Code in web UI - Network Settings / WiFI Settings / Advanced Settings / Country Code.
After save and apply, please reboot to take effect. Please let us know whether this works. Thank you.
It seems button “Save” doesn’t work (even the WiFi is on or off by settings).
Got it. We will fix the issue and release it soon.
After upgrade fw to 220.127.116.11 the WiFi country code is changeable. The button works OK.