This issue appears on a Debian 8 64-bit system (Linux 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt11-1 (2015-05-24)). This issue seems to be related to one specific mobile operator (Proximus Belgium in this case), as I have not seen it occur for others. Basically, connection setup is all without problems and connectivity is ok until at some point the modem is 'stuck' and connectivity is gone. The mmcli is still showing the modem as 'connected', but if I issue the commands to disconnect the bearer or connect the modem, I always get the same error: root@host:~# mmcli -b 0 --disconnect error: couldn't disconnect the bearer: 'GDBus.Error:org.gtk.GDBus.UnmappedGError.Quark._g_2dio_2derror_2dquark.Code44: Cannot write message: Error sending data: Broken pipe' root@host:~# mmcli -m 0 --simple-connect='apn=internet.proximus.be' error: couldn't connect the modem: 'GDBus.Error:org.gtk.GDBus.UnmappedGError.Quark._g_2dio_2derror_2dquark.Code44: Couldn't create client for service 'wds': CID allocation failed in the CTL client: Cannot write message: Error sending data: Broken pipe' There seems to be no way of fixing this, except by issuing a complete reset of the modem. Is this a known issue? I will try to provide the modem-manager debug logs when the issue reappears.
This is the first time I've seen this issue. If possible, please setup ModemManager to dump debug logs, see: http://www.freedesktop.org/wiki/Software/ModemManager/Debugging/ Also, which modem is this?
This was a Sierra Wireless MC7304 modem. I have not been able to reproduce this anymore, so this can be closed I'm afraid.
Closing it for now, please reopen if you can get us debug logs. Thanks!
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