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[Launchpad Bug Tracker <1335408@xxxxxxxxxxxxxxxxxx>]

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

** Changed in: network-manager (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1335408

Title:
  NetworkManager breaks 3G connection directly after connection

Status in “network-manager” package in Ubuntu:
  Confirmed

Bug description:
  I have an Huawei 3g modem. It was recognized by udev as 12d1:15e7. But
  this changed to 12d1:1506 after installing native software
  (ConnectManager or MobilePartner). Now lsusb output looks like

  Bus 002 Device 008: ID 12d1:1506 Huawei Technologies Co., Ltd. E398
  LTE/UMTS/GSM Modem/Networkcard

  By the way, native driver and software works good, but some unstable
  and hard to set up vpn connection - need one more console, etc. But
  modem can works with Ubuntu.

  When I try to connect with Network manager connection breaks. Logs for
  ModemManager, NetworkManager and auth.log I attached.

  I try to add some dbus rules like here
  https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/346835
  and https://bugs.launchpad.net/ubuntu/+source/modemmanager/+bug/417389
  but nothing help. My current org.freedesktop.NetworkManager.conf I
  attached to.

  My system is Ubuntu 14.04 and all latest upgrades.

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