How to enable wireless on Ubuntu Server 18.04 via CLI?
Solution 1:
Let's amend your netplan file. From the terminal:
sudo nano /etc/netplan/01-netcfg.yaml
Amend the file to read:
network:
version: 2
renderer: networkd
wifis:
wlo1:
dhcp4: true
dhcp6: true
access-points:
"network_ssid_name":
password: "**********"
Of course, substitue your network name and password. Note that both are enclosed in quotation marks ".
Netplan is quite strict about indentation and spacing; proofread carefully. Next, do:
sudo netplan generate
sudo netplan apply
Reboot and tell us if you connected:
ping -c3 www.ubuntu.com
If you get ping returns, you are all set.
Reference: https://netplan.io/examples