I got exactly the same problem since upgraded to artful. My modem is
Huawei E176 (12d1:140c) and my workaround for now is to add file
/etc/udev/rules.d/99-mm-e176.rules with below content to unset
ID_MM_CANDIDATE on /dev/cdc-wdm*.
ACTION!="add|change|move", GOTO="mm_e176_end"
# E176
ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="140c", SUBSYSTEM=="usb",
KERNEL=="cdc-wdm*", ENV{ID_MM_CANDIDATE}="0"
ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="140c", SUBSYSTEM=="usbmisc",
KERNEL=="cdc-wdm*", ENV{ID_MM_CANDIDATE}="0"
LABEL="mm_e176_end"
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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to modemmanager in Ubuntu.
https://bugs.launchpad.net/bugs/1723210
Title:
mobile broadband connectie fail (timeout)
Status in modemmanager package in Ubuntu:
New
Bug description:
On Ubuntu 17.10 I cannot make a mobile broadband connection.
On my multiboot laptop with a Hewlett-Packard Gobi 2000 Wireless Modem I can
successfully connect to T-Mobile broadband network when I use Ubuntu 17.04
(Gnome), but not with Ubuntu 17.10 (Artful Aardvark) with the latest patches
applied.
The gobi-loader loads the firmware in both instances successfully ( the 3
ttyUSB ports are visible. I get a response on ttyUSB1 with an AT-command)
In the attached syslog you can see the connection times out.
Description: Ubuntu Artful Aardvark (development branch)
Release: 17.10
modemmanager:
Installed: 1.6.8-1
Candidate: 1.6.8-1
Version table:
*** 1.6.8-1 500
500 http://nl.archive.ubuntu.com/ubuntu artful/main amd64 Packages
100 /var/lib/dpkg/status
network-manager:
Installed: 1.8.4-1ubuntu3
Candidate: 1.8.4-1ubuntu3
Version table:
*** 1.8.4-1ubuntu3 500
500 http://nl.archive.ubuntu.com/ubuntu artful/main amd64 Packages
100 /var/lib/dpkg/status
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/modemmanager/+bug/1723210/+subscriptions
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