Tunnelblick is a free, open source graphic user interface for OpenVPN ® on OS X and macOS. It provides easy control of OpenVPN client and/or server connections. It provides easy control of OpenVPN client and/or server connections.
Apple disabled native PPTP VPN in macOS Sierra for good reason – it is highly insecure. However, sometimes for reasons completely outside of your control you need to use a PPTP VPN.
Luckily, there is a free option through Flow VPN: Flow VPN for PPTP Once you download the client, simply type in the VPN address such as “pptpvpn.dal01.softlayer.com” with your username and password. PS – You can find a full list of SoftLayer PPTP VPN urls at the bottom of this guide: I did observe a defect while working with SoftLayer and Flow VPN. Your password cannot have the “#” special character in it or you will get invalid password errors. I couldn’t tell if the defect is with Flow VPN or SoftLayer.