The workaround https://bugs.launchpad.net/ubuntu/+source/network-manager-applet/+bug/1725062/comments/2 does not work for all. For me the VPN PPTP stopped work since Ubuntu 16.04 please fix this issue. The settings I received from my organization are:
Typ VPN : Point to Point tunneling protocol (PPTP) VPN server: example.server.net TCP port: 1723 IP protocol: GRE (Generic Routing Encapsulation, IP protocol ID 47 PPTP Authentication: Microsoft CHAP version 2 (MS-CHAP v2) PPP Encryption: MPPE -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager-applet in Ubuntu. https://bugs.launchpad.net/bugs/1725062 Title: Network Manager Applet can't connect to VPN, but nmtui does Status in network-manager-applet package in Ubuntu: Confirmed Bug description: 1) Ubuntu 17.10 Fresh install 2) network-manager-pptp/artful,now 1.2.4-4 amd64 VPN connection, created in network manager can't even turn on - slider goes back to off right after your click on it. Connect via "connect" does nothing too. I've tried to change option - store password/do not store password. No errors shown,except syslog: Oct 20 03:13:27 sabertooth NetworkManager[824]: <info> [1508458407.5923] audit: op="connection-activate" uuid="709047eb-3254-419f-a152-0a8ff0c3a04b" name="Schastye" pid=1603 uid=1000 result="success" Oct 20 03:13:27 sabertooth NetworkManager[824]: <info> [1508458407.5966] vpn-connection[0x55b89ac6b2c0,709047eb-3254-419f-a152-0a8ff0c3a04b,"Schastye",0]: Started the VPN service, PID 5992 Oct 20 03:13:27 sabertooth NetworkManager[824]: <info> [1508458407.6019] vpn-connection[0x55b89ac6b2c0,709047eb-3254-419f-a152-0a8ff0c3a04b,"Schastye",0]: Saw the service appear; activating connection Oct 20 03:13:27 sabertooth gnome-shell[1603]: Invalid VPN service type (cannot find authentication binary) Oct 20 03:13:27 sabertooth gnome-shell[1603]: Invalid VPN service type (cannot find authentication binary) Oct 20 03:13:27 sabertooth NetworkManager[824]: <error> [1508458407.6336] vpn-connection[0x55b89ac6b2c0,709047eb-3254-419f-a152-0a8ff0c3a04b,"Schastye",0]: Failed to request VPN secrets #3: No agents were available for this request. Oct 20 03:13:27 sabertooth NetworkManager[824]: <info> [1508458407.6347] vpn-connection[0x55b89ac6b2c0,709047eb-3254-419f-a152-0a8ff0c3a04b,"Schastye",0]: VPN plugin: state changed: stopped (6) If i try to connect to VPN via nmtui - everything works fine. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager-applet/+bug/1725062/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp