Netplan is a utility for easily configuring networking on a Linux-based system.

It supports both networkd and NetworkManager.

• networkd is part of Systemd. In other word systemd-networkd used to manage network connections using Systemd.
• NetworkManager is a GUI tool for configuring networking options.

The steps are:

1. Open the Terminal window app
2. Backup current config file using the cp command.
3. Type the following command to edit your netplan config file
4. Set renderer to NetworkManager
5. Save and close the file
6. Reboot the system

cp /etc/netplan/01-netcfg.yaml /backup/netplan/

Edit /etc/netplan/01-network-manager-all.yaml

/etc/netplan/01-network-manager-all.yaml

# This file describes the network interfaces available on your system
# For more information, see netplan(5).
network:
  version: 2
  #renderer: networkd
  renderer: NetworkManager  
  ethernets:
    enp3s0:
      dhcp4: yes

sudo netplan apply