Devialet Chat

hello evry body

i have a very bad noise in my system when i use ethernet with air3 
after 10 minutes of listening 

my system is

Devialet Expert 200
Focal Alto Utopia
PC win10 64bit

can anyone help me

What kind of bad noise? Is it like a loud hissing sound?

Are both the PC and the Devialet connected via ethernet? Are they connected to each other or to a router or switch?

Also what music software are you using to playback music to the Devialet?

What is the version of AIR3 that you have installed on your PC?

tanke you for your attention
it was becuse the my cd images was bad 
and i try with taht

every things was ok