LED Lights Behavior on Ethernet ports changed

I have a desktop computer connection to one of the ethernet ports on my Nighthawk R6900P router.   Up until about a month or so ago when connected and online the port LED would be white & blinking, and when the computer was sleeping the port LED would be a solid amber.  Then I noticed that now when the computer is asleep the LED light is not on at all, which would indicate no connection.  Functionally or operationally, there is not an issue, I am just wondering why that changed.  

Was that perhaps part of a recent security update that turns off the connection to the router when the device is asleep? 

Thanks!