Thanks for everybody! I found the solution on my own, that happened: Killer ethernet card just didnt want to identify itself in pc and get MAC address - all i done is wrote random numbers and letters and it started to work(in properties noticed the empty MAC address line)
Yesterday I lost connection on my Aurora r11. It shows, that u are connected to not identified network, no connection, but it works if i connect to another laptop or pc via same cable. Wifi works well also. I found same topic but the solvation didn't solve my problem - set ethernet port speed to 1gb. Also I made full reset of pc as it was bought and it didn't help. Any ideas?
Aurora R11, Ethernet cant identify network