Maybe you could ask from TP-Link tech support. I am wondering why they never released a new firmware with that and other fixes.

I can confirm it has been solved by this beta firmware :D

Thank you. I have flashed the firmware, and will test it.

Model : Hardware Version : Firmware Version : ISP : I have set a rule to disable LED lights from 0:00 to 10:00 so I have no disturbance during night with ligths. But, the internal clock gets delayed...