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https://bugs.launchpad.net/bugs/1766103

Title:
  bionic: VPN not working at all

Status in network-manager-pptp package in Ubuntu:
  Confirmed

Bug description:
  VPN is completely busted on bionic-desktop (4/21/2018).  In 17.10 my
  VPN was still working, "only" had to do a `killall nm-applet; nohup
  nm-applet &` to get the password prompt to show up.  In bionic, at
  least that portion now works without work-around.  However, I can't
  establish my VPN to my workplace at all.

  My VPN configuration in /etc/NetworkManager/system-connections/Test
  seems rather basic:

  [connection]
  id=Test
  uuid=ae916f15-2e8d-46b0-92d3-c2dece212c40
  type=vpn
  autoconnect=false
  permissions=user:thomas:;

  [vpn]
  domain=XXXXXX.XXX
  gateway=vpn.XXXXXX.XXX
  password-flags=2
  refuse-chap=yes
  refuse-eap=yes
  refuse-pap=yes
  require-mppe=yes
  user=YYYYYYYYY
  service-type=org.freedesktop.NetworkManager.pptp

  [ipv4]
  dns=10.11.11.11;
  dns-search=
  method=auto
  never-default=true
  route1=10.11.0.0/16,10.11.31.31

  [ipv6]
  addr-gen-mode=stable-privacy
  dns-search=
  method=ignore

  Here's the logs from syslog:

  Apr 22 10:29:18 thomas-bionic NetworkManager[507]: <info>  [1524414558.0300] 
audit: op="connection-activate" uuid="ae916f15-2e8d-46b0-92d3-c2dece212c40" 
name="Test" pid=1141 uid=1000 result="success"
  Apr 22 10:29:18 thomas-bionic gnome-shell[781]: JS ERROR: TypeError: item is 
undefined#012setActiveConnections/<@resource:///org/gnome/shell/ui/status/network.js:1518:17#012setActiveConnections@resource:///org/gnome/shell/ui/status/network.js:1515:9#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22#012_syncVpnConnections@resource:///org/gnome/shell/ui/status/network.js:1853:9#012wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
  Apr 22 10:29:18 thomas-bionic NetworkManager[507]: <info>  [1524414558.0445] 
vpn-connection[0x555885252640,ae916f15-2e8d-46b0-92d3-c2dece212c40,"Test",0]: 
Started the VPN service, PID 2601
  Apr 22 10:29:18 thomas-bionic NetworkManager[507]: <info>  [1524414558.0631] 
vpn-connection[0x555885252640,ae916f15-2e8d-46b0-92d3-c2dece212c40,"Test",0]: 
Saw the service appear; activating connection
  Apr 22 10:29:21 thomas-bionic NetworkManager[507]: <info>  [1524414561.2896] 
settings-connection[0x55588511f440,ae916f15-2e8d-46b0-92d3-c2dece212c40]: 
write: successfully updated (keyfile: update 
/etc/NetworkManager/system-connections/Test 
(ae916f15-2e8d-46b0-92d3-c2dece212c40,"Test")), connection was modified in the 
process
  Apr 22 10:29:21 thomas-bionic NetworkManager[507]: <info>  [1524414561.3008] 
vpn-connection[0x555885252640,ae916f15-2e8d-46b0-92d3-c2dece212c40,"Test",0]: 
VPN connection: (ConnectInteractive) reply received
  Apr 22 10:29:21 thomas-bionic NetworkManager[507]: <info>  [1524414561.3095] 
vpn-connection[0x555885252640,ae916f15-2e8d-46b0-92d3-c2dece212c40,"Test",0]: 
VPN plugin: state changed: starting (3)
  Apr 22 10:29:21 thomas-bionic pppd[2613]: Plugin 
/usr/lib/pppd/2.4.7/nm-pptp-pppd-plugin.so loaded.
  Apr 22 10:29:21 thomas-bionic NetworkManager[507]: Plugin 
/usr/lib/pppd/2.4.7/nm-pptp-pppd-plugin.so loaded.
  Apr 22 10:29:21 thomas-bionic pppd[2613]: pppd 2.4.7 started by root, uid 0
  Apr 22 10:29:21 thomas-bionic NetworkManager[507]: <info>  [1524414561.3358] 
manager: (ppp0): new Ppp device (/org/freedesktop/NetworkManager/Devices/5)
  Apr 22 10:29:21 thomas-bionic pppd[2613]: Using interface ppp0
  Apr 22 10:29:21 thomas-bionic NetworkManager[507]: Using interface ppp0
  Apr 22 10:29:21 thomas-bionic pppd[2613]: Connect: ppp0 <--> /dev/pts/0
  Apr 22 10:29:21 thomas-bionic NetworkManager[507]: Connect: ppp0 <--> 
/dev/pts/0
  Apr 22 10:29:21 thomas-bionic pptp[2620]: nm-pptp-service-2601 
log[main:pptp.c:353]: The synchronous pptp option is NOT activated
  Apr 22 10:29:21 thomas-bionic systemd-udevd[2617]: link_config: 
autonegotiation is unset or enabled, the speed and duplex are not writable.
  Apr 22 10:29:21 thomas-bionic NetworkManager[507]: <info>  [1524414561.3610] 
devices added (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
  Apr 22 10:29:21 thomas-bionic NetworkManager[507]: <info>  [1524414561.3613] 
device added (path: /sys/devices/virtual/net/ppp0, iface: ppp0): no ifupdown 
configuration found.
  Apr 22 10:29:21 thomas-bionic pptp[2632]: nm-pptp-service-2601 
log[ctrlp_rep:pptp_ctrl.c:259]: Sent control packet type is 1 
'Start-Control-Connection-Request'
  Apr 22 10:29:21 thomas-bionic pptp[2632]: nm-pptp-service-2601 
log[ctrlp_disp:pptp_ctrl.c:781]: Received Start Control Connection Reply
  Apr 22 10:29:21 thomas-bionic pptp[2632]: nm-pptp-service-2601 
log[ctrlp_disp:pptp_ctrl.c:815]: Client connection established.
  Apr 22 10:29:22 thomas-bionic pptp[2632]: nm-pptp-service-2601 
log[ctrlp_rep:pptp_ctrl.c:259]: Sent control packet type is 7 
'Outgoing-Call-Request'
  Apr 22 10:29:22 thomas-bionic pptp[2632]: nm-pptp-service-2601 
log[ctrlp_disp:pptp_ctrl.c:900]: Received Outgoing Call Reply.
  Apr 22 10:29:22 thomas-bionic pptp[2632]: nm-pptp-service-2601 
log[ctrlp_disp:pptp_ctrl.c:939]: Outgoing call established (call ID 63889, 
peer's call ID 52566).
  Apr 22 10:29:52 thomas-bionic pppd[2613]: LCP: timeout sending Config-Requests
  Apr 22 10:29:52 thomas-bionic NetworkManager[507]: LCP: timeout sending 
Config-Requests
  Apr 22 10:29:52 thomas-bionic NetworkManager[507]: Connection terminated.
  Apr 22 10:29:52 thomas-bionic pppd[2613]: Connection terminated.
  Apr 22 10:29:52 thomas-bionic NetworkManager[507]: <warn>  [1524414592.3891] 
vpn-connection[0x555885252640,ae916f15-2e8d-46b0-92d3-c2dece212c40,"Test",0]: 
VPN plugin: failed: connect-failed (1)
  Apr 22 10:29:52 thomas-bionic gnome-shell[781]: Removing a network device 
that was not added
  Apr 22 10:29:52 thomas-bionic NetworkManager[507]: <info>  [1524414592.4202] 
vpn-connection[0x555885252640,ae916f15-2e8d-46b0-92d3-c2dece212c40,"Test",0]: 
VPN service disappeared
  Apr 22 10:29:52 thomas-bionic NetworkManager[507]: <info>  [1524414592.4244] 
devices removed (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
  Apr 22 10:29:52 thomas-bionic pppd[2613]: Terminating on signal 15
  Apr 22 10:29:52 thomas-bionic NetworkManager[507]: Terminating on signal 15
  Apr 22 10:29:52 thomas-bionic NetworkManager[507]: Child process 
/usr/sbin/pptp XXX.XXX.XXX.XXX --nolaunchpppd --loglevel 0 --logstring 
nm-pptp-service-2601 (pid 2616) terminated with signal 15
  Apr 22 10:29:52 thomas-bionic NetworkManager[507]: Modem hangup
  Apr 22 10:29:52 thomas-bionic pppd[2613]: Child process /usr/sbin/pptp 
XXX.XXX.XXX.XXX --nolaunchpppd --loglevel 0 --logstring nm-pptp-service-2601 
(pid 2616) terminated with signal 15
  Apr 22 10:29:52 thomas-bionic pppd[2613]: Modem hangup
  Apr 22 10:29:52 thomas-bionic pppd[2613]: Exit.
  Apr 22 10:29:52 thomas-bionic pptp[2620]: nm-pptp-service-2601 
warn[decaps_hdlc:pptp_gre.c:226]: short read (-1): Input/output error
  Apr 22 10:29:52 thomas-bionic pptp[2620]: nm-pptp-service-2601 
warn[decaps_hdlc:pptp_gre.c:238]: pppd may have shutdown, see pppd log
  Apr 22 10:29:52 thomas-bionic pptp[2632]: nm-pptp-service-2601 
log[callmgr_main:pptp_callmgr.c:245]: Closing connection (unhandled)
  Apr 22 10:29:52 thomas-bionic pptp[2632]: nm-pptp-service-2601 
log[ctrlp_rep:pptp_ctrl.c:259]: Sent control packet type is 12 
'Call-Clear-Request'
  Apr 22 10:29:52 thomas-bionic pptp[2632]: nm-pptp-service-2601 
log[call_callback:pptp_callmgr.c:84]: Closing connection (call state)
  Apr 22 10:29:52 thomas-bionic gnome-shell[1141]: Removing a network device 
that was not added

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