Hi All, I have a good news to share, I could solve this problem after around a week. There are couple of points. # I have this problem, only with my Home Wifi. It was working fine with office Wifi / Smartphone Hotspot. # I could solve the problem by simply changing MTU value. Refer below article for the same. https://www.privateinternetaccess.com/forum/discussion/17335/vpn-trouble-with-german-unitymedia-and-win-8-1
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/991666 Title: VPN Connects Successfully & Then Shortly Thereafter Fails Status in network-manager-pptp: New Status in network-manager package in Ubuntu: Confirmed Bug description: I am able to successfully establish a PPTP VPN connection in Ubuntu 12.04 (kernel 3.2.0-24-generic) but after approximately 30 seconds to 1.5 minutes it will fail. During the connection time I am only able to load about 1-2 webpages and then they freeze and I cannot access resources on the VPN network. I do not believe this is related to my VPN server as I am able to establish VPN connections with my Windows machines and Smartphones all day long with no problems. Is there a solution to this problem? Description: Ubuntu 12.04 LTS Release: 12.04 network-manager: 0.9.4.0-0ubuntu3 Here is the syslog: Apr 30 00:17:50 satellite-p755 NetworkManager[994]: <info> Starting VPN service 'pptp'... Apr 30 00:17:50 satellite-p755 NetworkManager[994]: <info> VPN service 'pptp' started (org.freedesktop.NetworkManager.pptp), PID 15069 Apr 30 00:17:50 satellite-p755 NetworkManager[994]: <info> VPN service 'pptp' appeared; activating connections Apr 30 00:17:50 satellite-p755 NetworkManager[994]: <info> VPN plugin state changed: starting (3) Apr 30 00:17:51 satellite-p755 NetworkManager[994]: <info> VPN connection 'Schaefer Law Group' (Connect) reply received. Apr 30 00:17:51 satellite-p755 pppd[15073]: Plugin /usr/lib/pppd/2.4.5/nm-pptp-pppd-plugin.so loaded. Apr 30 00:17:51 satellite-p755 pppd[15073]: pppd 2.4.5 started by root, uid 0 Apr 30 00:17:51 satellite-p755 pppd[15073]: Using interface ppp0 Apr 30 00:17:51 satellite-p755 pppd[15073]: Connect: ppp0 <--> /dev/pts/2 Apr 30 00:17:51 satellite-p755 NetworkManager[994]: SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/net/ppp0, iface: ppp0) Apr 30 00:17:51 satellite-p755 NetworkManager[994]: SCPlugin-Ifupdown: device added (path: /sys/devices/virtual/net/ppp0, iface: ppp0): no ifupdown configuration found. Apr 30 00:17:51 satellite-p755 pptp[15076]: nm-pptp-service-15069 log[main:pptp.c:314]: The synchronous pptp option is NOT activated Apr 30 00:17:51 satellite-p755 pptp[15084]: nm-pptp-service-15069 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 1 'Start-Control-Connection-Request' Apr 30 00:17:51 satellite-p755 pptp[15084]: nm-pptp-service-15069 log[ctrlp_disp:pptp_ctrl.c:739]: Received Start Control Connection Reply Apr 30 00:17:51 satellite-p755 pptp[15084]: nm-pptp-service-15069 log[ctrlp_disp:pptp_ctrl.c:773]: Client connection established. Apr 30 00:17:52 satellite-p755 pptp[15084]: nm-pptp-service-15069 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 7 'Outgoing-Call-Request' Apr 30 00:17:52 satellite-p755 pptp[15084]: nm-pptp-service-15069 log[ctrlp_disp:pptp_ctrl.c:858]: Received Outgoing Call Reply. Apr 30 00:17:52 satellite-p755 pptp[15084]: nm-pptp-service-15069 log[ctrlp_disp:pptp_ctrl.c:897]: Outgoing call established (call ID 0, peer's call ID 0). Apr 30 00:17:55 satellite-p755 pppd[15073]: CHAP authentication succeeded Apr 30 00:17:55 satellite-p755 pppd[15073]: MPPE 128-bit stateless compression enabled Apr 30 00:17:55 satellite-p755 pppd[15073]: local IP address 192.168.1.20 Apr 30 00:17:55 satellite-p755 pppd[15073]: remote IP address 192.168.1.1 Apr 30 00:17:55 satellite-p755 pppd[15073]: primary DNS address 8.8.8.8 Apr 30 00:17:55 satellite-p755 pppd[15073]: secondary DNS address 8.8.4.4 Apr 30 00:17:55 satellite-p755 NetworkManager[994]: <info> VPN connection 'Schaefer Law Group' (IP Config Get) reply received. Apr 30 00:17:55 satellite-p755 NetworkManager[994]: <info> VPN Gateway: 75.75.79.330 Apr 30 00:17:55 satellite-p755 NetworkManager[994]: <info> Tunnel Device: ppp0 Apr 30 00:17:55 satellite-p755 NetworkManager[994]: <info> Internal IP4 Address: 192.168.1.20 Apr 30 00:17:55 satellite-p755 NetworkManager[994]: <info> Internal IP4 Prefix: 32 Apr 30 00:17:55 satellite-p755 NetworkManager[994]: <info> Internal IP4 Point-to-Point Address: 192.168.1.1 Apr 30 00:17:55 satellite-p755 NetworkManager[994]: <info> Maximum Segment Size (MSS): 0 Apr 30 00:17:55 satellite-p755 NetworkManager[994]: <info> Forbid Default Route: no Apr 30 00:17:55 satellite-p755 NetworkManager[994]: <info> Internal IP4 DNS: 8.8.8.8 Apr 30 00:17:55 satellite-p755 NetworkManager[994]: <info> Internal IP4 DNS: 8.8.4.4 Apr 30 00:17:55 satellite-p755 NetworkManager[994]: <info> DNS Domain: '(none)' Apr 30 00:17:56 satellite-p755 dnsmasq[14712]: exiting on receipt of SIGTERM Apr 30 00:17:56 satellite-p755 NetworkManager[994]: <info> DNS: starting dnsmasq... Apr 30 00:17:56 satellite-p755 NetworkManager[994]: <info> (ppp0): writing resolv.conf to /sbin/resolvconf Apr 30 00:17:56 satellite-p755 dnsmasq[15128]: started, version 2.59 cache disabled Apr 30 00:17:56 satellite-p755 dnsmasq[15128]: compile time options: IPv6 GNU-getopt DBus i18n DHCP TFTP conntrack IDN Apr 30 00:17:56 satellite-p755 dnsmasq[15128]: using nameserver 8.8.4.4#53 Apr 30 00:17:56 satellite-p755 dnsmasq[15128]: using nameserver 8.8.8.8#53 Apr 30 00:17:56 satellite-p755 NetworkManager[994]: <info> VPN connection 'Schaefer Law Group' (IP Config Get) complete. Apr 30 00:17:56 satellite-p755 NetworkManager[994]: <info> Policy set 'Schaefer Law Group' (ppp0) as default for IPv4 routing and DNS. Apr 30 00:17:56 satellite-p755 NetworkManager[994]: <info> VPN plugin state changed: started (4) Apr 30 00:17:56 satellite-p755 dbus[890]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper) Apr 30 00:17:56 satellite-p755 dbus[890]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher' Apr 30 00:18:04 satellite-p755 ntpdate[15161]: adjust time server 91.189.94.4 offset 0.053823 sec Apr 30 00:19:52 satellite-p755 pptp[15084]: nm-pptp-service-15069 log[pptp_handle_timer:pptp_ctrl.c:1050]: closing control connection due to missing echo reply Apr 30 00:19:52 satellite-p755 pptp[15084]: nm-pptp-service-15069 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 12 'Call-Clear-Request' Apr 30 00:19:52 satellite-p755 pptp[15084]: nm-pptp-service-15069 log[pptp_conn_close:pptp_ctrl.c:430]: Closing PPTP connection Apr 30 00:19:52 satellite-p755 pptp[15084]: nm-pptp-service-15069 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 3 'Stop-Control-Connection-Request' Apr 30 00:19:52 satellite-p755 pptp[15084]: nm-pptp-service-15069 log[call_callback:pptp_callmgr.c:79]: Closing connection (call state) Apr 30 00:19:52 satellite-p755 pppd[15073]: Modem hangup Apr 30 00:19:52 satellite-p755 pppd[15073]: Connect time 2.0 minutes. Apr 30 00:19:52 satellite-p755 pppd[15073]: Sent 5296 bytes, received 1195 bytes. Apr 30 00:19:52 satellite-p755 pppd[15073]: MPPE disabled Apr 30 00:19:52 satellite-p755 pppd[15073]: Connection terminated. Apr 30 00:19:52 satellite-p755 avahi-daemon[950]: Withdrawing workstation service for ppp0. Apr 30 00:19:52 satellite-p755 NetworkManager[994]: <info> VPN plugin state changed: stopping (5) Apr 30 00:19:52 satellite-p755 NetworkManager[994]: <info> VPN plugin state changed: stopped (6) Apr 30 00:19:52 satellite-p755 NetworkManager[994]: <info> VPN plugin state change reason: 0 Apr 30 00:19:52 satellite-p755 NetworkManager[994]: <warn> error disconnecting VPN: Could not process the request because no VPN connection was active. Apr 30 00:19:52 satellite-p755 NetworkManager[994]: <warn> (9) failed to find interface name for index Apr 30 00:19:52 satellite-p755 NetworkManager[994]: nm_system_iface_flush_routes: assertion `iface != NULL' failed Apr 30 00:19:52 satellite-p755 NetworkManager[994]: <warn> (9) failed to find interface name for index Apr 30 00:19:52 satellite-p755 dnsmasq[15128]: exiting on receipt of SIGTERM Apr 30 00:19:52 satellite-p755 NetworkManager[994]: <info> DNS: starting dnsmasq... Apr 30 00:19:52 satellite-p755 NetworkManager[994]: <info> (ppp0): writing resolv.conf to /sbin/resolvconf Apr 30 00:19:52 satellite-p755 dnsmasq[15196]: started, version 2.59 cache disabled Apr 30 00:19:52 satellite-p755 dnsmasq[15196]: compile time options: IPv6 GNU-getopt DBus i18n DHCP TFTP conntrack IDN Apr 30 00:19:52 satellite-p755 dnsmasq[15196]: using nameserver 192.168.1.1#53 Apr 30 00:19:53 satellite-p755 NetworkManager[994]: <info> Policy set 'dd-wrt' (wlan0) as default for IPv4 routing and DNS. Apr 30 00:19:53 satellite-p755 NetworkManager[994]: SCPlugin-Ifupdown: devices removed (path: /sys/devices/virtual/net/ppp0, iface: ppp0) Apr 30 00:19:53 satellite-p755 dbus[890]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper) Apr 30 00:19:53 satellite-p755 dbus[890]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher' Apr 30 00:19:53 satellite-p755 pppd[15073]: Exit. Apr 30 00:19:58 satellite-p755 NetworkManager[994]: <info> VPN service 'pptp' disappeared Apr 30 00:21:01 satellite-p755 dbus[890]: [system] Activating service name='org.gnome.SettingsDaemon.DateTimeMechanism' (using servicehelper) Apr 30 00:21:01 satellite-p755 dbus[890]: [system] Successfully activated service 'org.gnome.SettingsDaemon.DateTimeMechanism' Apr 30 00:21:36 satellite-p755 dbus[890]: [system] Activating service name='org.gnome.SettingsDaemon.DateTimeMechanism' (using servicehelper) To manage notifications about this bug go to: https://bugs.launchpad.net/network-manager-pptp/+bug/991666/+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