I used Network Connections dialog to create a new Mobile Broadband connection of Wind Italy. I choosed non-business plan and entered the correct PIN code. When I clicked on the Wind icon in network connection drop-down menu, it said:
Modem network Disconnected
I tried in command line also:
cumeo@minh-laptop:~$ nmcli con up uuid 'c690f9e3-e209-475f-98a2-2d35d53547b2' Error: Connection activation failed.