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-   -   3G modem unstable after upgrade to wheezy (http://www.linuxquestions.org/questions/linux-networking-3/3g-modem-unstable-after-upgrade-to-wheezy-876638/)

jothan sans cheer 04-23-2011 05:36 AM

3G modem unstable after upgrade to wheezy
 
Hello there!

I recently upgraded from Debian Lenny to wheezy (testing). I use a popular 3G modem, the Huawei E220. In Lenny everything worked fine. I use wvdial to connect and the script from lenny, which worked just fine.

Unstable behaviour goes like this:
I connect, pppd starts, then, either immediately or after a few seconds, the modem hangs up (pppd errorcode 16). Upon retry a SIM Error is being thrown or the /dev/ttyUSB0 node vanishes. Un/Re-plugging the modem and dialing again results in a working connection (mostly).

Has anyone experienced similar behaviour and found a solution or specific problem? Is there any possibility finding out why the modem hangs up (because a web research revealed that there are a million possibilities for this behaviour)?

Thanks,
jothan.

jamescondron 04-24-2011 01:57 PM

Hi there,

You might be better off asking this in debian-kernel@lists.debian.org mail list and reporting back- this can only be a kernel issue if it worked before and didn't after the upgrade


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