Apple TV 3 drops ethernet connection on 2 seconds

I have a problem with ethernet connection on my ATV3. It started about one month ago. ATV randomly drops ethernet connection for a two seconds. Here is the screenshot from my router:

1. I'm already check the router interfaces and cable, other devices working fine without any problems.


2. I have enabled autoupdate on ATV and the latest firmware installed.


3. Also I tried to downgrade the speed/duplex on interface to 10 megabits half-duplex.

Is there any recommendations or solutions?