** Description changed:

  OS:
  Ubuntu 16.04.1 amd64 Unity
  
  Kernel:
  4.4.0-31-generic
  
  USB Modem:
  HiLink USB modem (Huawei E3372).
  
  lsusb:
  Bus 003 Device 006: ID 12d1:14dc Huawei Technologies Co., Ltd.
  
- Module:
- cdc_ether
- 
  After reboot OS - modem connected on HiLink mode and indicator on device
- show blue light (modem connected) and on panel NM show connected. BUT
- really network not available!
+ show blue light (modem connected). BUT really network not available!
  
  This variants not solved problem (not network):
  - sudo systemctl restart NetworkManager.service
- - sudo modprobe cdc_ether
  - reconnect modem to USB port (device connect normaly but network not 
available)
  
  Solved problem only turn off PC and start again - modem connected and
  network available.
  
  On Ubuntu 14.04 modem working fine and after reboot OS too - this Ubuntu 
16.04 problem!
  I don't know this problem NetworkManager or maybe module device or etc...

** Attachment added: "dmesg"
   
https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1609764/+attachment/4713992/+files/dmesg

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https://bugs.launchpad.net/bugs/1609764

Title:
  Not network after reboot OS

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