first step is to identify the name of your wireless network interface. To do so execute:
$ ls /sys/class/net enp0s25 lo wlp3s0
Depending on your Ubuntu 20.04 system the wireless network interface name would be something like: wlan0
or like in this case it is wlp3s0
.
sudo vim /etc/netplan/50-cloud-init.yaml
# This file is generated from information provided by the datasource. Changes # to it will not persist across an instance reboot. To disable cloud-init's # network configuration capabilities, write a file # /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following: # network: {config: disabled} network: ethernets: eth0: dhcp4: true optional: true version: 2 wifis: wlp3s0: optional: true access-points: "SSID-NAME-HERE": password: "PASSWORD-HERE" dhcp4: true
sudo netplan generate
sudo netplan apply