GNOME Bugzilla – Bug 729243
the network periodically breaks
Last modified: 2014-12-11 22:27:07 UTC
If you create access to the Internet using usb modem ZTE MF667 then the network periodically breaks.
Hi, this bug report definitely needs more information ;-) Can you please elaborate what you want to do, what you expect to happen, and what seems to happen instead? Also, which versions of software are you using? Distribution? NM? ModemManager? Any logfiles?
Hello! Broadband modem after connection had to work without breaks network, but ZTE MF 667 works extremely unstable. If you do not run or download torrent files, but merely to seek information on the Internet that breaks occur very often (with this modem). Sorry, I do not even know how to collect info, but I have created a report here - https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1304404, may take out what part of the information?
Distr -Ubuntu 14.04
of logfile /var/log/syslog to give?
Created attachment 275533 [details] logfile (syslog)
How to find out what version of network-manager I have?
tr@lp:~$ dpkg -s network-manager | grep 'Version' Version: 0.9.8.8-0ubuntu7
Hi, could you provide a debug log when of when the error happens? edit /etc/NetworkManager/NetworkManager.conf and add/modify the lines [logging] level=DEBUG domains=ALL After that, restart the service with sudo service network-manager restart (I guess, I don't have Ubuntu) And then again provide the syslog file as in comment 5. Thank you
Created attachment 275744 [details] logfile (syslog) Нere attached. If you need more, or I did not properly log, then immediately right to declare it.
Created attachment 275792 [details] logfile (smaller syslog)
What news? Something else is needed?
The connection is terminated: rcvd [LCP TermReq id=0x1c] LCP terminated by peer Modem hangup Connection terminated. I don't see the actual cause of that. But it could be related to MTU setting of the interface. Try if lowering MTU helps. $ ip link show ppp0 $ sudo ip link set mtu 1400 dev ppp0
Also lacking ModemManager debug logs, which could be useful here, see this link on how to get them: http://www.freedesktop.org/wiki/Software/ModemManager/Debugging/
Tamir, were you able to do more tests as suggested by Jiri? Also, were you able to gather debug logs? Truth be told, the fact that you get disconnected by the network may very well be an issue in the network itself...
I'm going to assume that this may have been a temporary network issue or something. If you can still reproduce it reliably, please gather debug logs as per comment 13, and open a new bug in the new MM bugzilla at fd.o: https://bugs.freedesktop.org/enter_bug.cgi?product=ModemManager