Macbook Air (beginning 2015) Apple TV problem

My Macbook Air (beginning 2015, 10.11.6) won't conect to Apple TV (4th Gen, latest software).

Both are in same network, Apple TV connected bu CAT5 cable to router,

Macbook connected to same network by WiFi.

During connection proces I get request to put 4 digit code which is displayed on Apple TV screen.

After typing code pop-up window appears giving me information that it is impossible to connect to Apple TV.

Can't find solution...

Any ideas ?

最后更新：2017-10-11 06:09:43