AP6 420E constant green LED is offline - normal operation?

Essentially the AP6 can work without Link to Central. Which means the local UI is fully available and the LED indicates not the Link to Central, instead the availablity of the AP6 itself. 

Compared to APX, which made the APX unavailable without Central / Firewall, the AP6 is perfectly fine without Central, as the settings from Central gets pushed to the AP6. 

Thanks, I understand it can work with cached config but will not indicate a loss of active management communication in any visible way.

Actually: It is not cached config. AP6 is standalone. But accepts "call to actions" from central. Which means: If Central is not reachable, the AP6 does not care until it is once reachable. 
It was a decision to change the LEDs and doing a RED/Orange LED for "not reachable" was not the right call as the AP6 still is fully functional. 

Actually: It is not cached config. AP6 is standalone. But accepts "call to actions" from central. Which means: If Central is not reachable, the AP6 does not care until it is once reachable. 
It was a decision to change the LEDs and doing a RED/Orange LED for "not reachable" was not the right call as the AP6 still is fully functional.