Connect to PEAP access points in school using nmcli

connect peap using nmcli

In Linux, specially Ubuntu, sometimes there is problem with connecting to Enterprise networks using GUI NetworKManager.
This is the situation where nmcli is needed.
* In terminal:
nmcli con add type wifi ifname wlp3s0 con-name work-wifi ssid work-ssid
nmcli con edit id work-wifi
* Then enter the following:
nmcli> set ipv4.method auto
nmcli> set 802-1x.eap peap
nmcli> set 802-1x.phase2-auth mschapv2
nmcli> set 802-1x.identity myusername
nmcli> set 802-1x.password mypassword
nmcli> set wifi-sec.key-mgmt wpa-eap
nmcli> save
nmcli> activate

Note that if you have more problems it's also good to change the Wifi backend from wpa_supp to iwd.

From
  - https://askubuntu.com/questions/262491/connect-to-a-wpa2-enterprise-connection-via-cli-no-desktop
  - https://blog.khmersite.net/2018/08/connect-to-a-wpa2-enterprise-connection-using-nmcli/