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I need to get a VPN running to my university. I have all the correct credentiels and information but for some reason no connection is being established.

I have no clue why no connection is being established neither do people from my university. They don't really support Ubuntu but I had vpn working a few ubuntu releases earlier without any effort, I believe 12.04 LTS. I knew already a long time that it isn't working but I didn't really needed it back then so I didn't bother about it.

I am using ubuntu Ubuntu 13.04 64-bit with GNOME 3.8.3.

SYSLOG showed me the following. Hopefully someone can say something usefull? To log starts after I have given the command to establish a connection.

Dec 30 22:04:11 WG-Tablet NetworkManager[910]: <info> Starting VPN service 'pptp'...
Dec 30 22:04:11 WG-Tablet NetworkManager[910]: <info> VPN service 'pptp' started (org.freedesktop.NetworkManager.pptp), PID 15814
Dec 30 22:04:11 WG-Tablet NetworkManager[910]: <info> VPN service 'pptp' appeared; activating connections
Dec 30 22:04:11 WG-Tablet NetworkManager[910]: <info> VPN plugin state changed: starting (3)
Dec 30 22:04:12 WG-Tablet NetworkManager[910]: <info> VPN connection 'TUE' (Connect) reply received.
Dec 30 22:04:12 WG-Tablet pppd[15815]: Plugin /usr/lib/pppd/2.4.5/nm-pptp-pppd-plugin.so loaded.
Dec 30 22:04:12 WG-Tablet pppd[15815]: pppd 2.4.5 started by root, uid 0
Dec 30 22:04:12 WG-Tablet pppd[15815]: Using interface ppp0
Dec 30 22:04:12 WG-Tablet pppd[15815]: Connect: ppp0 <--> /dev/pts/10
Dec 30 22:04:12 WG-Tablet NetworkManager[910]:    SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
Dec 30 22:04:12 WG-Tablet NetworkManager[910]:    SCPlugin-Ifupdown: device added (path: /sys/devices/virtual/net/ppp0, iface: ppp0): no ifupdown configuration found.
Dec 30 22:04:12 WG-Tablet NetworkManager[910]: <warn> /sys/devices/virtual/net/ppp0: couldn't determine device driver; ignoring...
Dec 30 22:04:12 WG-Tablet pptp[15821]: nm-pptp-service-15814 log[main:pptp.c:314]: The synchronous pptp option is NOT activated
Dec 30 22:04:12 WG-Tablet pptp[15829]: nm-pptp-service-15814 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 1 'Start-Control-Connection-Request'
Dec 30 22:04:12 WG-Tablet pptp[15829]: nm-pptp-service-15814 log[ctrlp_disp:pptp_ctrl.c:739]: Received Start Control Connection Reply
Dec 30 22:04:12 WG-Tablet pptp[15829]: nm-pptp-service-15814 log[ctrlp_disp:pptp_ctrl.c:773]: Client connection established.
Dec 30 22:04:13 WG-Tablet pptp[15829]: nm-pptp-service-15814 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 7 'Outgoing-Call-Request'
Dec 30 22:04:13 WG-Tablet pptp[15829]: nm-pptp-service-15814 log[ctrlp_disp:pptp_ctrl.c:858]: Received Outgoing Call Reply.
Dec 30 22:04:13 WG-Tablet pptp[15829]: nm-pptp-service-15814 log[ctrlp_disp:pptp_ctrl.c:897]: Outgoing call established (call ID 0, peer's call ID 42674).
Dec 30 22:04:43 WG-Tablet pppd[15815]: LCP: timeout sending Config-Requests
Dec 30 22:04:43 WG-Tablet pppd[15815]: Connection terminated.
Dec 30 22:04:43 WG-Tablet avahi-daemon[890]: Withdrawing workstation service for ppp0.
Dec 30 22:04:43 WG-Tablet NetworkManager[910]: <warn> VPN plugin failed: 1
Dec 30 22:04:43 WG-Tablet NetworkManager[910]:    SCPlugin-Ifupdown: devices removed (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
Dec 30 22:04:43 WG-Tablet pptp[15821]: nm-pptp-service-15814 warn[decaps_hdlc:pptp_gre.c:204]: short read (-1): Input/output error
Dec 30 22:04:43 WG-Tablet pppd[15815]: Modem hangup
Dec 30 22:04:43 WG-Tablet pptp[15821]: nm-pptp-service-15814 warn[decaps_hdlc:pptp_gre.c:216]: pppd may have shutdown, see pppd log
Dec 30 22:04:43 WG-Tablet pptp[15829]: nm-pptp-service-15814 log[callmgr_main:pptp_callmgr.c:234]: Closing connection (unhandled)
Dec 30 22:04:43 WG-Tablet pptp[15829]: nm-pptp-service-15814 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 12 'Call-Clear-Request'
Dec 30 22:04:43 WG-Tablet pptp[15829]: nm-pptp-service-15814 log[call_callback:pptp_callmgr.c:79]: Closing connection (call state)
Dec 30 22:04:43 WG-Tablet pppd[15815]: Exit.
Dec 30 22:04:43 WG-Tablet NetworkManager[910]: <warn> VPN plugin failed: 1
Dec 30 22:04:43 WG-Tablet NetworkManager[910]: <warn> VPN plugin failed: 1
Dec 30 22:04:43 WG-Tablet NetworkManager[910]: <info> VPN plugin state changed: stopped (6)
Dec 30 22:04:43 WG-Tablet NetworkManager[910]: <info> VPN plugin state change reason: 0
Dec 30 22:04:43 WG-Tablet NetworkManager[910]: <info> Policy set 'Auto NoWifiForYou' (wlan0) as default for IPv4 routing and DNS.
Dec 30 22:04:43 WG-Tablet NetworkManager[910]: <warn> error disconnecting VPN: Could not process the request because no VPN connection was active.
Dec 30 22:04:47 WG-Tablet NetworkManager[910]: <info> VPN service 'pptp' disappeared
Dec 30 22:05:08 WG-Tablet wpa_supplicant[1072]: wlan0: WPA: Group rekeying completed with 00:0c:f6:b1:03:48 [GTK=CCMP]
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