networking

 networking.service - Raise network interfaces
   Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Sun 2019-06-16 16:42:44 -03; 10min ago
     Docs: man:interfaces(5)
  Process: 647 ExecStop=/sbin/ifdown -a --read-environment --exclude=lo (code=exited, status=0/SUCCESS)
  Process: 924 ExecStart=/sbin/ifup -a --read-environment (code=exited, status=1/FAILURE)
  Process: 920 ExecStartPre=/bin/sh -c [ "$CONFIGURE_INTERFACES" != "no" ] && [ -n "$(ifquery --read-environment --list --exclude=lo)" ] && udevadm settle (code=exited, status=0/SUCCESS)
 Main PID: 924 (code=exited, status=1/FAILURE)

Jun 16 16:42:44 prado ifup[924]: RTNETLINK answers: File exists
Jun 16 16:42:44 prado ifup[924]: ifup: failed to bring up enp4s1
Jun 16 16:42:44 prado ifup[924]: RTNETLINK answers: File exists
Jun 16 16:42:44 prado ifup[924]: ifup: failed to bring up enp4s2
Jun 16 16:42:44 prado ifup[924]: eth0: ERROR while getting interface flags: No such device
Jun 16 16:42:44 prado ifup[924]: ifup: failed to bring up dsl-provider
Jun 16 16:42:44 prado systemd[1]: networking.service: Main process exited, code=exited, status=1/FAILURE
Jun 16 16:42:44 prado systemd[1]: Failed to start Raise network interfaces.
Jun 16 16:42:44 prado systemd[1]: networking.service: Unit entered failed state.
Jun 16 16:42:44 prado systemd[1]: networking.service: Failed with result 'exit-code'.