edit grub file
sudo vim /etc/default/grub
and change line from “GRUB_CMDLINE_LINUX=”” to:
GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0"
update grub
sudo update-grub
change /etc/network/interfaces to eth0 format
auto eth0
iface eth0 inet dhcp
change /etc/udev/rules.d/70-persistent-net.rules form ens3 to eth0
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="fa:16:3e:01:af:fa", NAME="eth0"
reboot system