I am adding here remaining screens under 5GHz option on setting page.

Please check the photo. I am 100 % sure everything is right in set up.

Yes I can see tab and it is enabled there.

Model : Hardware Version : Not Clear Firmware Version : ISP : I set up my new dual band router C50. On status page it shows 5GHz is disabled. I played around a lot but I am unable to enable it...