Eu tenho minha configuração de Wi-Fi funcionando usando o gerenciador de rede. Em essência:
# Install Network Manager using Snap
sudo snap install network-manager
# Turn on the WiFi interface
network-manager.nmcli r wifi on
# verify the WiFi is on
network-manager.nmcli r
# List the available network
network-manager.nmcli d wifi list
# Connect to a network
network-manager.nmcli d wifi connect <ssid> password <password>
# verify it is connected to WiFi
network-manager.nmcli c
Deve ser isso. Eu coloquei tudo em gist .