LTE USB Modem Fedora 21

asked 2015-04-01 15:24:09 -0500

purple_jacket gravatar image

updated 2015-04-02 14:00:01 -0500

Hi,

I own USB modem Huawei E3372 (Bus 001 Device 006: ID 12d1:1506 Huawei Technologies Co., Ltd. Modem/Networkcard). However I have difficulties using it. I can see mobile broadband connection option in Network Manager. Configuring it and selecting however does nothing.

Then I installed modem manager GUI that can see modem but it appears that it's just information application and really does nothing.

So I tried some commands from mmcli:

mmcli -i 0 --pin=****
mmcli -m 0 --simple-connect="apn=internet,operator-id=23103"

After this commands modem is connected, however I can't seem to have any connection from applications (i.e. Firefox), but when I now choose broadband connection from network manager everything seems to work for a while. After some time (2 minutes or so) connection is lost, I get error and can't reconnect unless I do reboot and repeat the process.

ModemManager quit unexpectedly
The application encountered a problem and could not continue.
version: 1.4.4.2.fc21.x86_64
ModemManager killed by SIGABRT

I didn't find any good information about lte modems and Fedora so I have no idea what are the options or how to fix this behavior.

UPDATE: I managed to get network manager into connecting changing confing in /etc/NetworkManager/system-connections/ It was missing pin (never asked for any), I also added network-id.

But the new problem is, I am not receiving any ip address.

sudo journalctl -u NetworkManager
pr 02 12:00:51 Sonja NetworkManager[1087]: <info>  (ttyUSB0): modem state changed, 'registered' --> 'connecting' (reason: user-requested)
Apr 02 12:00:51 Sonja NetworkManager[1087]: <info>  (ttyUSB0): modem state changed, 'connecting' --> 'connected' (reason: user-requested)
Apr 02 12:00:51 Sonja NetworkManager[1087]: <info>  Activation (ttyUSB0) Stage 2 of 5 (Device Configure) scheduled...
Apr 02 12:00:51 Sonja NetworkManager[1087]: <info>  Activation (ttyUSB0) Stage 2 of 5 (Device Configure) starting...
Apr 02 12:00:51 Sonja NetworkManager[1087]: <info>  (ttyUSB0): device state change: prepare -> config (reason 'none') [40 50 0]
Apr 02 12:00:51 Sonja NetworkManager[1087]: <info>  Activation (ttyUSB0) Stage 2 of 5 (Device Configure) successful.
Apr 02 12:00:51 Sonja NetworkManager[1087]: <info>  Activation (ttyUSB0) Stage 2 of 5 (Device Configure) complete.
Apr 02 12:00:51 Sonja NetworkManager[1087]: <info>  Activation (ttyUSB0) Stage 3 of 5 (IP Configure Start) scheduled.
Apr 02 12:00:51 Sonja NetworkManager[1087]: <info>  Activation (ttyUSB0) Stage 3 of 5 (IP Configure Start) started...
Apr 02 12:00:51 Sonja NetworkManager[1087]: <info>  (ttyUSB0): device state change: config -> ip-config (reason 'none') [50 70 0]
Apr 02 12:00:51 Sonja NetworkManager[1087]: <info>  Activation (wwp0s20u1i2) Beginning DHCPv4 transaction (timeout in 45 seconds)
Apr 02 12:00:51 Sonja NetworkManager[1087]: <info>  dhclient started with pid 10011
Apr 02 12:00:51 Sonja NetworkManager[1087]: <info>  Activation (ttyUSB0) Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
Apr 02 12:00:51 Sonja NetworkManager[1087]: <info>  Activation (ttyUSB0) Stage 3 of 5 (IP Configure Start) complete.
Apr 02 12:00:51 Sonja ...
(more)
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Comments

Normally USB modems work in Fedora without installing any custom software's. Connect your modem and then choose the broadband profile that you created in the Gnome network manager GUI and wait for a few seconds until it disconnects by itself, then as root, post the output of dmesg

anishjp gravatar imageanishjp ( 2015-04-02 04:38:38 -0500 )edit

In original post

purple_jacket gravatar imagepurple_jacket ( 2015-04-02 14:00:13 -0500 )edit