Bug 104557 - No connection after OS upgrade
Summary: No connection after OS upgrade
Status: RESOLVED NOTOURBUG
Alias: None
Product: ModemManager
Classification: Unclassified
Component: general (show other bugs)
Version: 1.6
Hardware: Other All
: medium normal
Assignee: ModemManager bug user
QA Contact:
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Depends on:
Blocks:
 
Reported: 2018-01-09 13:54 UTC by Fabien Grumelard
Modified: 2018-01-09 14:08 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

Attachments
debug logs of modemManager and NetworkManager (22.10 KB, text/x-log)
2018-01-09 13:54 UTC, Fabien Grumelard 		Details
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Description Fabien Grumelard 2018-01-09 13:54:13 UTC 
Created attachment 136631 [details]
debug logs of modemManager and NetworkManager

Hi,

I have a Option Globetrotter HSDPA Modem (ID 0af0:6971). 
On a Debian Stretch, there is no problem to establish a broadband connection. 
On a Debian Buster/Sid, that doesn't work anymore (configuration files are the same). I don't know if the problem comes from the kernel (4.14.0), ModemManager (1.6.8) or NetworkManager (1.10.2).
You can see debug logs in attachment.

Regards,
Fabien
Comment 1 Aleksander Morgado 2018-01-09 14:08:34 UTC 
I believe this is the culprit:

<info>  [1515504760.7109] modem-broadband[ttyHS0]: IPv4 static configuration:
<warn>  [1515504760.7111] device (ttyHS0): retrieving IPv4 configuration failed: (ttyHS0) retrieving IP4 configuration failed: invalid gateway address (null)

This is a bug in NM 1.10.2, and I believe it's fixed in the nm-1-10 branch here, but not released yet:
https://cgit.freedesktop.org/NetworkManager/NetworkManager/commit/?h=nm-1-10&id=f4dc5bd782e709c541174aac3fd3a160ca5f53ba

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