Unable to connect VPN in Ubuntu 17.10

I have been trying to connect VPN on ubuntu 17.10, but there is a problem. Every time I click connect, it shows the message "Network connection failed, activation of the network connection failed" and I don't know why.

I followed the same procedure in this video to establish the VPN connection:

Can anyone help?

1 Answer

I wasn't able to connect to VPN with the settings app of Ubuntu 17.10 too. But i've found a terminal solution for connecting to VPN. This code connects you to the connection that you made in settings :

nmcli con up your_connection_name --ask

If you can't remember the connection name you can use this code :

nmcli connection show

And for disconnecting use this code :

nmcli con down your_connection_name