But, when I use example from arduino.cc site everything work fine. (Links at first post).
Tested on Nano, uno r3 and breadboard (328p with optiboot 6.2).

Anyway, Thank you for your help

Sketch uses 23860 bytes (77%). Global variables uses 1097 bajtów (53%)

I copied the sample code from here and changed only ip adresses.
But in serial console I see that arduino does not use static IP just to draw others. Somethimes they hit the correct ip for a moment.
The screenshot will describe it better.

When I use example from arduino.cc site everything work fine

I use:
arduino ide v 1.8.3
MySensors 2.1.1