Dear Maintainer,

after upgrading in debian sid  (upgrade around the 2nd december 2013) on a
thinpad T430 with an
Ericson H5321 gw UMTS-Device The connection to the provider chrashes after
about 10-60 seconds.
The device disappears from networkmanager and after waiting some more seconds,
it reappears. One can now reconnect but
it breaks at every try.
Enclosed a log in daemon.log.
This fault was not visible before the upgrade.
To be sure that it is not a hardware Bug i tried it with an wvdial script i
used before (this also uses the ppp0 daemon).
The device and the connections works perfectly for minutes.

Thanks,

Hein


The important lines of the log file (too me) seems to be:


Dec  8 12:22:29 aerzte NetworkManager[27971]: <info> Policy set 'Prosieben
Webstick' (ppp0) as default for IPv4 routing and DNS.
Dec  8 12:22:29 aerzte NetworkManager[27971]: <info> Activation (ttyACM1)
successful, device activated.
Dec  8 12:22:29 aerzte dbus[2485]: [system] Activating service
name='org.freedesktop.nm_dispatcher' (using servicehelper)
Dec  8 12:22:29 aerzte dbus[2485]: [system] Successfully activated service
'org.freedesktop.nm_dispatcher'
Dec  8 12:23:29 aerzte modem-manager[3114]: <info>  (ttyACM0) closing serial
port...
Dec  8 12:23:29 aerzte modem-manager[3114]: <info>  (ttyACM0) serial port
closed
Dec  8 12:23:29 aerzte modem-manager[3114]: <info>  (ttyACM1) closing serial
port...
Dec  8 12:23:29 aerzte modem-manager[3114]: <info>  (ttyACM1) serial port
closed
Dec  8 12:23:29 aerzte avahi-daemon[26019]: Withdrawing workstation service for
wwan0.
Dec  8 12:23:29 aerzte NetworkManager[27971]: <info> (ttyACM1): device state
change: activated -> failed (reason 'ip-config-unavailable') [100 120 5]
Dec  8 12:23:29 aerzte avahi-daemon[26019]: Withdrawing workstation service for
ppp0.

I asked in the modemmanager mailing list (see
http://lists.freedesktop.org/archives/modemmanager-devel/2015-February/001758.html)
and somebody finds the problem and posted a patch for 0.9.10, 1.0.0 and git
branch.

Now it should work.