Cannot set custom DNS servers and use DHCP in 20.04 Kubuntu

[Dan]

I am only able to set custom DNS servers using the /etc/netplan/01-network-manager-all.yaml if i use the configuration below with a static IP address:

d@a:~$ more /etc/netplan/01-network-manager-all.yaml
# Let NetworkManager manage all devices on this system
network:
  version: 2
  renderer: NetworkManager
  wifis:
    wlp3s0:
      dhcp4: false
      addresses: [10.0.0.49/24]
      gateway4: 10.0.0.1
      access-points:
        accesspointename:
          password: passwordgoeshere
      nameservers:
        addresses: [8.8.4.4,8.8.8.8,1.1.0.0,1.1.1.1]

The configuration above works, Network Manager restarts after issuing sudo netplan --debug apply, there is a new connection that is created with the same name as my original access point but prepended with netplan-wlp3s0.

I would like not to use a static IP address. When i try the below configuration to set custom DNS servers and have DHCP enabled. No new connection is created and the original one has the service providers DNS servers.

d@a:~$ more /etc/netplan/01-network-manager-all.yaml
# Let NetworkManager manage all devices on this system
network:
  version: 2
  renderer: NetworkManager
  wifis:
    wlp3s0:
      dhcp4-overrides:
        use-dns: no
      access-points:
        accesspointname:
          password: passwordgoeshere
      nameservers:
        addresses: [8.8.4.4,8.8.8.8,1.1.0.0,1.1.1.1]

d@a:~$ sudo netplan --debug apply
** (generate:11280): DEBUG: 22:03:24.251: Processing input file /etc/netplan/01-network-manager-all.yaml..
** (generate:11280): DEBUG: 22:03:24.251: starting new processing pass
** (generate:11280): DEBUG: 22:03:24.251: wlp3s0: adding wifi AP 'accesspointname'
** (generate:11280): DEBUG: 22:03:24.252: We have some netdefs, pass them through a final round of validation
** (generate:11280): DEBUG: 22:03:24.252: wlp3s0: setting default backend to 2
** (generate:11280): DEBUG: 22:03:24.252: Configuration is valid
** (generate:11280): DEBUG: 22:03:24.252: Generating output files..
** (generate:11280): DEBUG: 22:03:24.252: networkd: definition wlp3s0 is not for us (backend 2)
(generate:11280): GLib-DEBUG: 22:03:24.252: posix_spawn avoided (fd close requested)
DEBUG:no netplan generated networkd configuration exists
DEBUG:netplan generated NM configuration changed, restarting NM
DEBUG:wlp3s0 not found in {}
DEBUG:Merged config:
network:
  bonds: {}
  bridges: {}
  ethernets: {}
  vlans: {}
  wifis:
    wlp3s0:
      access-points:
        accesspointname:
          password: passwordgoeshere
      dhcp4-overrides:
        use-dns: false
      nameservers:
        addresses:
        - 8.8.4.4
        - 8.8.8.8
        - 1.1.0.0
        - 1.1.1.1

DEBUG:Skipping non-physical interface: lo
DEBUG:Skipping non-physical interface: enp0s25
DEBUG:{}
DEBUG:netplan triggering .link rules for lo
DEBUG:netplan triggering .link rules for enp0s25
DEBUG:netplan triggering .link rules for wlp3s0

How can i keep DHCP on and use custom DNS servers?

Thanks

[Dan (codecando-x)]

Someone on a different forum suggested i use this configuration:

network:
  version: 2
  renderer: NetworkManager
  wifis:
    wlp3s0:
      dhcp4: true
      access-points:
        accesspointgoeshere:
          password: passwordgoeshere
      nameservers:
        addresses: [8.8.4.4,8.8.8.8,1.1.0.0,1.1.1.1]

However then when i run: nmcli dev show | grep DNS
The service providers DNS servers are before the custom ones i have defined:

IP4.DNS[1]: 75.75.75.75
IP4.DNS[2]: 75.75.76.76
IP4.DNS[3]: 8.8.4.4
IP4.DNS[4]: 8.8.8.8
IP4.DNS[5]: 1.1.0.0
IP4.DNS[6]: 1.1.1.1

I could do it all in Network Manager, i am however looking for a config file solution so that i can script it.

Does netplan support this configuration?

Thanks