I can't believe your software requires me to have one of 2.4 or 5ghz bands enabled. Why can I not disable the band entirely?

When I uncheck both, I get: "At least one wi-fi band should be selected". Why???

Your design choices are frustrating and unfriendly to customers. Between the "you must use a mobile device to setup" and this, I don't think I will be keeping the device.