Hey guys
My problem is solved, I did many things so I am not sure which one exactlly was a solution
- I followed instructions under these two links:
https://answers.microsoft.com/en-us/windows/forum/all/unable-to-see-pcs-on-my-workgroup-network-id/896aac05-3df9-40f8-9a4b-5869d39d4418
http://woshub.com/network-computers-not-showing-windows-10/
2 Restart my computer
3 Disable all in my computer Wifi, bluetooth, VPN (just not ethernet ofcourse)
4 Run PYNQ-Z2 board
5 Connect computer with board via ethernet (I think it is important to first start up the board and let to flash all LEDs and after that plug ethernet cable)