Please check your settings on the following screen
Configuration/all-profiles/wireless lan/virtual-AP/SSID-profile/high throughput SSID profile
"Highthroughput Enable (SSID) == checked"
The setting you indicate above would only affect one of the radios in the AP, not both... so even if that was the setting it would not change both LEDs ;)
Please try verifiying the settings I have here and see if the highlighted setting is 'enabled' at this time.
Tks!
JF