Select Apple symbol top left and click System preferences.
Select the 'Network' option under internet and network.
Select the + sign above your padlock.
Select interface to reveal drop down menu and select the VPN option.
If you are running the latest version of MacOS you will only be able to setup a L2TP connection. The VPN type should be changed to L2TP over IPSec and enter a service name for your VPN connection(anything you want) and create.
Enter server address l2tp.mysetup.co.uk (please note that this is an L not a 1 in the server address), then enter your account username and tick show VPN in status menu bar, then select authentication settings.
Enter your account password and the shared secret which is 953783903, then select OK.
This will take you back to the main configuration screen, select advanced.
Make sure that the send all traffic over VPN connection box is ticked and select OK.
Select apply and then connect.
Thats you connected to connect and disconnect you can use the icon in the task menu bar.