WWAN Connection: DNS Error / PPPd not starting?

Bug #1172178 reported by rot
10
This bug affects 2 people
Affects Status Importance Assigned to Milestone
network-manager (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

I have a problem connecting on my x1 carbon - actually I didn' suceed to connect on win8 either even though I updated all drivers firmaware etc.

On windows I don't know how to see whats going on and I use ubuntu for my everday work anway.

I will attach / post a snipplet from syslog that showas whats happening. On another machine I am using the same SIM and also 13.04 but it works fine.

There pppd ist started before dhclient. I don't see any ppp launch here and this seems stange to me.

Anyway I have no Idea where to look or what to try to make it work. Could somebody help me?

Revision history for this message
rot (rot) wrote :
Download full text (7.9 KiB)

-----------------------------

Some further information about the machine:

~$ lsb_release -a; uname -a; lsusb
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 13.04
Release: 13.04
Codename: raring
Linux rotmobilX 3.8.0-19-generic #29-Ubuntu SMP Wed Apr 17 18:16:28 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 003 Device 004: ID 0bdb:1926 Ericsson Business Mobile Networks BV
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 147e:2020 Upek
Bus 001 Device 004: ID 0a5c:21e6 Broadcom Corp.
Bus 001 Device 005: ID 04f2:b315 Chicony Electronics Co., Ltd

----------------------------------------------------------

The syslog messages I get when trying to connect:

Apr 22 13:59:46 myX1 NetworkManager[1336]: <info> Activation (wwan0) starting connection 'bob'
Apr 22 13:59:46 myX1 NetworkManager[1336]: <info> (wwan0): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Apr 22 13:59:46 myX1 NetworkManager[1336]: <info> Activation (wwan0) Stage 1 of 5 (Device Prepare) scheduled...
Apr 22 13:59:46 myX1 NetworkManager[1336]: <info> Activation (wwan0) Stage 1 of 5 (Device Prepare) started...
Apr 22 13:59:46 myX1 NetworkManager[1336]: <info> Activation (wwan0) Stage 1 of 5 (Device Prepare) complete.
Apr 22 13:59:46 myX1 NetworkManager[1336]: <warn> GSM modem enable failed: (32) SIM PIN required
Apr 22 13:59:46 myX1 modem-manager[1290]: <info> (ttyACM0) opening serial port...
Apr 22 13:59:48 myX1 modem-manager[1290]: <info> Modem /org/freedesktop/ModemManager/Modems/0: unlock no longer required
Apr 22 13:59:48 myX1 modem-manager[1290]: <info> (ttyACM0) closing serial port...
Apr 22 13:59:48 myX1 modem-manager[1290]: <info> (ttyACM0) serial port closed
Apr 22 13:59:52 myX1 modem-manager[1290]: <info> (ttyACM0) opening serial port...
Apr 22 13:59:52 myX1 modem-manager[1290]: <info> Modem /org/freedesktop/ModemManager/Modems/0: state changed (disabled -> enabling)
Apr 22 13:59:52 myX1 modem-manager[1290]: Invalid error code: 276
Apr 22 13:59:52 myX1 modem-manager[1290]: <info> (ttyACM1) opening serial port...
Apr 22 13:59:53 myX1 modem-manager[1290]: <info> (ttyACM0): using PDU mode for SMS
Apr 22 13:59:53 myX1 modem-manager[1290]: <info> Modem /org/freedesktop/ModemManager/Modems/0: state changed (enabling -> enabled)
Apr 22 13:59:53 myX1 NetworkManager[1336]: <info> WWAN now enabled by management service
Apr 22 13:59:53 myX1 modem-manager[1290]: <info> Modem /org/freedesktop/ModemManager/Modems/0: state changed (enabled -> searching)
Apr 22 13:59:53 myX1 modem-manager[1290]: <info> Modem /org/freedesktop/ModemManager/Modems/0: state changed (searching -> enabled)
Apr 22 13:59:55 myX1 modem-manager[1290]: <info> Modem /org/freedesktop/ModemManager/Modems/0: state changed (enabled -> searching)
Apr 22 13:59:56 myX1 modem-manager[1290]: <info> ...

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Revision history for this message
rot (rot) wrote :

The adapter is an Ericsson 5321gw - the bulit in wwan module on a Lenovo X1 Carbon.

Revision history for this message
Ubuntu Foundations Team Bug Bot (crichton) wrote :

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1172178/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

tags: added: bot-comment
tags: added: raring
affects: ubuntu → network-manager (Ubuntu)
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in network-manager (Ubuntu):
status: New → Confirmed
Revision history for this message
Marc Ramaekers (marc-ramaekers) wrote :

Hi,
I'm experiencing the same problem. Only difference is that mine did work under Windows 8 without issues.
I found the following related information:
- http://osdir.com/ml/networkmanager-list/2013-03/msg00136.html
- https://bugzilla.kernel.org/show_bug.cgi?id=54791

I have tried the workaround proposed (build kernel 3.8 and set an option to revert to cdc_acm, but this does not solve the problem because then I encounter the following problem:?field.comment=Hi,
I'm experiencing the same problem. Only difference is that mine did work under Windows 8 without issues.
I found the following related information:
- http://osdir.com/ml/networkmanager-list/2013-03/msg00136.html
- https://bugzilla.kernel.org/show_bug.cgi?id=54791

I have tried the workaround proposed (build kernel 3.8 and set an option to revert to cdc_acm, but this does not solve the problem because then I encounter the following problem: (syslog attached)

May 3 06:54:39 x1 modem-manager[1171]: <info> Modem /org/freedesktop/ModemManager/Modems/0: state changed (registered -> connecting)
May 3 06:55:31 x1 modem-manager[1171]: <info> Modem /org/freedesktop/ModemManager/Modems/0: state changed (connecting -> registered)
May 3 06:55:31 x1 NetworkManager[1194]: <warn> GSM connection failed: (32) Busy

Revision history for this message
Oleg Cherkasov (o1e9) wrote :

Following some tips I have set /etc/modprobe.d/cdc_ncm.conf:

options cdc_ncm prefer_mbim=N

and it seems solve the problem.

Revision history for this message
Marius B. Kotsbak (mariusko) wrote :

In that case it is a duplicate of bug #1169117.

Revision history for this message
Roman Geber (geber) wrote :

Same problem with a Lenovo X1 Carbon. The fix suggestes by Oleg worked fine for me. Thanks.

Revision history for this message
Andreas Behringer (a-behringer2007) wrote :

Oleg Cherkasov (o1e9) wrote on 2013-05-07: #6
Following some tips I have set /etc/modprobe.d/cdc_ncm.conf:

options cdc_ncm prefer_mbim=N

and it seems solve the problem.

many, many thanks for posting this, oleg. after adding the file everything works fine!

Revision history for this message
rot (rot) wrote :

Works for me (and my X1 Carbon) too. Thanks! Finally I don't need a custom kernel anymore.

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