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[Bug 1520887] [NEW] Workaround Ubuntu 15.10. Network manager applet cannot stabely activate mobile broadband. ZTE MF820D.

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Public bug reported:

Hi,

I use Ubuntu 15.10.
If I Start Ubuntu from power-off, then I can enter the PIN-code for the SIM-card, and I also get prompted for my password (to make changes to the mobile broadband device). The 4G-USB-modem gets green light for establishing an 4G (or 3G) connection, but it is impossible to connect to the 4G-internet from the drop down menu of network manager at this stage; I get an error message. (I have set up this 4G-internet-connention with help from the network-manager wizard, using defaults, except turning off roaming and setting allow all users to connect.)
However, if I choose to reboot without power-off, the green light on the USB-modem stays on during the reboot (keeps 4G-connected I presume), then it is possible to connect to internet from the drop down menu, most of the time. One time I also had to deactivate-activate mobile broadband from the drop down menu for internet connection to be established.

It is also not possible to edit the connections of the mobile broadband
in the network manager applet (gets an error message). Editing the wifi-
connection works just fine.

Regards

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: network-manager 1.0.4-0ubuntu5.1
ProcVersionSignature: Ubuntu 4.2.0-18.22-generic 4.2.3
Uname: Linux 4.2.0-18-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
CurrentDesktop: Unity
Date: Sun Nov 29 07:44:12 2015
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
IpRoute:
 default via 95.192.135.45 dev wwx0eb79c89dc58  proto static  metric 750 
 95.192.135.44/30 dev wwx0eb79c89dc58  proto kernel  scope link  src 95.192.135.46  metric 750 
 169.254.0.0/16 dev wwx0eb79c89dc58  scope link  metric 1000
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
 WimaxEnabled=true
ProcEnviron:
 LANGUAGE=sv
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=sv_SE.UTF-8
 SHELL=/bin/bash
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-dev:
 DEVICE    TYPE      STATE         DBUS-PATH                                  CONNECTION      CON-UUID                              CON-PATH                                           
 cdc-wdm1  gsm       connected     /org/freedesktop/NetworkManager/Devices/3  Telia Telia 4G  d851a986-be40-488b-9f96-36d2c9387b57  /org/freedesktop/NetworkManager/ActiveConnection/5 
 wlp3s0    wifi      disconnected  /org/freedesktop/NetworkManager/Devices/2  --              --                                    --                                                 
 enp4s0    ethernet  unavailable   /org/freedesktop/NetworkManager/Devices/1  --              --                                    --                                                 
 lo        loopback  unmanaged     /org/freedesktop/NetworkManager/Devices/0  --              --                                    --
nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'.

** Affects: network-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug wily

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https://bugs.launchpad.net/bugs/1520887

Title:
  Workaround Ubuntu 15.10. Network manager applet cannot stabely
  activate mobile broadband. ZTE MF820D.

Status in network-manager package in Ubuntu:
  New

Bug description:
  Hi,

  I use Ubuntu 15.10.
  If I Start Ubuntu from power-off, then I can enter the PIN-code for the SIM-card, and I also get prompted for my password (to make changes to the mobile broadband device). The 4G-USB-modem gets green light for establishing an 4G (or 3G) connection, but it is impossible to connect to the 4G-internet from the drop down menu of network manager at this stage; I get an error message. (I have set up this 4G-internet-connention with help from the network-manager wizard, using defaults, except turning off roaming and setting allow all users to connect.)
  However, if I choose to reboot without power-off, the green light on the USB-modem stays on during the reboot (keeps 4G-connected I presume), then it is possible to connect to internet from the drop down menu, most of the time. One time I also had to deactivate-activate mobile broadband from the drop down menu for internet connection to be established.

  It is also not possible to edit the connections of the mobile
  broadband in the network manager applet (gets an error message).
  Editing the wifi-connection works just fine.

  Regards

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: network-manager 1.0.4-0ubuntu5.1
  ProcVersionSignature: Ubuntu 4.2.0-18.22-generic 4.2.3
  Uname: Linux 4.2.0-18-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Sun Nov 29 07:44:12 2015
  IfupdownConfig:
   # interfaces(5) file used by ifup(8) and ifdown(8)
   auto lo
   iface lo inet loopback
  IpRoute:
   default via 95.192.135.45 dev wwx0eb79c89dc58  proto static  metric 750 
   95.192.135.44/30 dev wwx0eb79c89dc58  proto kernel  scope link  src 95.192.135.46  metric 750 
   169.254.0.0/16 dev wwx0eb79c89dc58  scope link  metric 1000
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=true
   WimaxEnabled=true
  ProcEnviron:
   LANGUAGE=sv
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=sv_SE.UTF-8
   SHELL=/bin/bash
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  nmcli-dev:
   DEVICE    TYPE      STATE         DBUS-PATH                                  CONNECTION      CON-UUID                              CON-PATH                                           
   cdc-wdm1  gsm       connected     /org/freedesktop/NetworkManager/Devices/3  Telia Telia 4G  d851a986-be40-488b-9f96-36d2c9387b57  /org/freedesktop/NetworkManager/ActiveConnection/5 
   wlp3s0    wifi      disconnected  /org/freedesktop/NetworkManager/Devices/2  --              --                                    --                                                 
   enp4s0    ethernet  unavailable   /org/freedesktop/NetworkManager/Devices/1  --              --                                    --                                                 
   lo        loopback  unmanaged     /org/freedesktop/NetworkManager/Devices/0  --              --                                    --
  nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'.

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