Public bug reported:
Network manager drops 3G connection within a minute after having
successfully established it. Following is written to the syslog:
May 5 09:48:23 xxxwp400322 NetworkManager[17141]: <info> PPP manager(IP Config
Get) reply received.
May 5 09:48:23 xxxwp400322 NetworkManager[17141]: modem_ip4_config_result:
assertion `nm_device_activate_ip4_state_in_conf (device) == TRUE' failed
May 5 09:48:23 xxxwp400322 NetworkManager[17141]:
(nm-ppp-manager.c:331):monitor_stats: runtime check failed: (priv->monitor_id
== 0)
After several service network-manager restart/stop/start following
appeared:
May 5 09:58:58 xxxwp400322 NetworkManager[30656]: <info> (ttyUSB0): device
state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
May 5 09:58:58 xxxwp400322 NetworkManager[30656]: <info> (ttyUSB0):
deactivating device (reason 'managed') [2]
May 5 09:58:58 xxxwp400322 NetworkManager[30656]:
nm_system_iface_flush_routes: assertion `ifindex > 0' failed
May 5 09:58:58 xxxwp400322 NetworkManager[30656]:
nm_system_iface_flush_addresses: assertion `ifindex > 0' failed
May 5 09:58:58 xxxwp400322 NetworkManager[30656]: <info> (ttyUSB0): device
state change: unavailable -> disconnected (reason 'none') [20 30 0]
May 5 09:58:58 xxxwp400322 kernel: [110012.973239] nm-applet[2498]: segfault
at 30 ip 000000000042e16c sp 00007fff045f1600 error 4 in nm-applet[400000+58000]
it tried to send bug report automatically but since I was offline i'm
not sure if it was sent. After that record appeared in the log, NM
refused to appear in Unity bar despite more stop/starts. Unity --replace
also didn't help. Then I restarted whole thing and after another couple
of NP stop/starts it worked. It never was a problem to use 3G connection
before I upgraded to 12.04
Perhaps you also need:
1) Ubuntu 12.04
2)network-manager:
Installed: 0.9.4.0-0ubuntu3
Candidate: 0.9.4.0-0ubuntu3
Version table:
*** 0.9.4.0-0ubuntu3 0
500 http://ua.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
100 /var/lib/dpkg/status
3) I expected to connect to my 3G provider and enjoy.
4) I had to waist my precious time to get it working and I'm not sure if it
will work next time.
Best regards, Eugene.
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/994983
Title:
"monitor_stats: runtime check failed" causes network manager to drop
connection
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