Ubuntu
network-manager package

  1. Bug #991666
  2. Comment #16

Comment 16 for bug 991666

Revision history for this message
Alex Botev (botevmg) wrote :

On 14.04 experiencing the same problem. After I try to connect to my VPN in a matter of a few seconds after the successful connection I get disconnected. Following this post http://tdanas.blogspot.co.uk/2015/01/ubuntu-vpn-connects-successfully-and.html I decide to see what are my routing tables while the connection is on. Results are:

Destination Gateway Genmask Flags Metric Ref Use Iface
default * 0.0.0.0 U 0 0 0 ppp0
cyrano2.cs.ucl. 172.17.31.1 255.255.255.255 UGH 0 0 0 wlan0
cyrano2.cs.ucl. 172.17.31.1 255.255.255.255 UGH 0 0 0 wlan0
winvpn11.cs.ucl * 255.255.255.255 UH 0 0 0 ppp0
172.17.31.0 * 255.255.255.0 U 9 0 0 wlan0

I do not know how it works but having a duplicate entry in the routing table might be the cause of the problem.