link is always 'configuring' after enabling dhcp

[piersh]

netplan: v0.36.1
ubuntu: 18.04.1 lts

$ cat network.yaml:
network:
  version: 2
  renderer: networkd
  ethernets:
    enp3s0:
      dhcp4: false
      dhcp6: false

$ networkctl
IDX LINK TYPE OPERATIONAL SETUP
  1 lo loopback carrier unmanaged
  2 enp3s0 ether off unmanaged

$ vi network.yaml
$ cat network.yaml
network:
  version: 2
  renderer: networkd
  ethernets:
    enp3s0:
      dhcp4: true # this is what changed
      dhcp6: false

$ netplan apply
$ sleep 60
$ networkctl
IDX LINK TYPE OPERATIONAL SETUP
  1 lo loopback carrier unmanaged
  3 enp3s0 ether degraded configuring

$ reboot
...
$ networkctl
IDX LINK TYPE OPERATIONAL SETUP
  1 lo loopback carrier unmanaged
  2 enp3s0 ether routable configured

[Lukas Märdian (slyon)]

This usually happens when it cannot get an IP address from the DHCP server. Is you DHCP server configured properly?

Doesn't seem to be a netplan/networkd issue. Please re-open if you feel this is still relevant.