Install dhcpcd-gtk by entering the following commands in the terminal:
sudo apt update sudo apt install dhcpcd-gtk
Description:
GTK+ frontend for dhcpcd and wpa_supplicant
dhcpcd-gtk sits in the notification area and notifies you of changes to your IPv4 network configuration from dhcpcd and wpa_supplicant.
Homepage: http://roy.marples.name/projects/dhcpcd-ui
Version: 0.7.5-0ubuntu2
Section: universe/net