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[Bug 1522690] [NEW] network-manager fails to connect on wakeup

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Public bug reported:

Occasionally when I wakeup my notebook from suspend, no Wifi connection is established: 
- sometimes it is sufficient to  toggle the Wifi block to reconnect
- once or twice a week I have to restart the network-manager to regain Wifi connection.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: network-manager 1.0.4-0ubuntu5.1
ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6
Uname: Linux 4.2.0-19-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
CurrentDesktop: GNOME
Date: Fri Dec  4 07:18:34 2015
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2015-04-26 (221 days ago)
InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Release amd64 (20150422)
IpRoute:
 default via 192.168.178.1 dev wlan0  proto static  metric 600 
 169.254.0.0/16 dev wlan0  scope link  metric 1000 
 192.168.178.0/24 dev wlan0  proto kernel  scope link  src 192.168.178.53  metric 600
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
 WimaxEnabled=true
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: network-manager
UpgradeStatus: Upgraded to wily on 2015-10-11 (53 days ago)
nmcli-con:
 NAME      UUID                                  TYPE             TIMESTAMP   TIMESTAMP-REAL                AUTOCONNECT  AUTOCONNECT-PRIORITY  READONLY  DBUS-PATH                                   ACTIVE  DEVICE  STATE      ACTIVE-PATH                                        
 rotbunte  325d3da0-959c-4aa8-978b-5b4317894443  802-11-wireless  1444578765  So 11 Okt 2015 17:52:45 CEST  yes          0                     no        /org/freedesktop/NetworkManager/Settings/1  no      --      --         --                                                 
 Gattaca   9c0f527f-46e0-47fa-9c0f-cc80891d5cd3  802-11-wireless  1449209787  Fr 04 Dez 2015 07:16:27 CET   yes          0                     no        /org/freedesktop/NetworkManager/Settings/0  yes     wlan0   activated  /org/freedesktop/NetworkManager/ActiveConnection/0
nmcli-dev:
 DEVICE  TYPE      STATE      DBUS-PATH                                  CONNECTION  CON-UUID                              CON-PATH                                           
 wlan0   wifi      connected  /org/freedesktop/NetworkManager/Devices/1  Gattaca     9c0f527f-46e0-47fa-9c0f-cc80891d5cd3  /org/freedesktop/NetworkManager/ActiveConnection/0 
 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/1522690

Title:
  network-manager fails to connect on wakeup

Status in network-manager package in Ubuntu:
  New

Bug description:
  Occasionally when I wakeup my notebook from suspend, no Wifi connection is established: 
  - sometimes it is sufficient to  toggle the Wifi block to reconnect
  - once or twice a week I have to restart the network-manager to regain Wifi connection.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: network-manager 1.0.4-0ubuntu5.1
  ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6
  Uname: Linux 4.2.0-19-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Fri Dec  4 07:18:34 2015
  IfupdownConfig:
   # interfaces(5) file used by ifup(8) and ifdown(8)
   auto lo
   iface lo inet loopback
  InstallationDate: Installed on 2015-04-26 (221 days ago)
  InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Release amd64 (20150422)
  IpRoute:
   default via 192.168.178.1 dev wlan0  proto static  metric 600 
   169.254.0.0/16 dev wlan0  scope link  metric 1000 
   192.168.178.0/24 dev wlan0  proto kernel  scope link  src 192.168.178.53  metric 600
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=true
   WimaxEnabled=true
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  SourcePackage: network-manager
  UpgradeStatus: Upgraded to wily on 2015-10-11 (53 days ago)
  nmcli-con:
   NAME      UUID                                  TYPE             TIMESTAMP   TIMESTAMP-REAL                AUTOCONNECT  AUTOCONNECT-PRIORITY  READONLY  DBUS-PATH                                   ACTIVE  DEVICE  STATE      ACTIVE-PATH                                        
   rotbunte  325d3da0-959c-4aa8-978b-5b4317894443  802-11-wireless  1444578765  So 11 Okt 2015 17:52:45 CEST  yes          0                     no        /org/freedesktop/NetworkManager/Settings/1  no      --      --         --                                                 
   Gattaca   9c0f527f-46e0-47fa-9c0f-cc80891d5cd3  802-11-wireless  1449209787  Fr 04 Dez 2015 07:16:27 CET   yes          0                     no        /org/freedesktop/NetworkManager/Settings/0  yes     wlan0   activated  /org/freedesktop/NetworkManager/ActiveConnection/0
  nmcli-dev:
   DEVICE  TYPE      STATE      DBUS-PATH                                  CONNECTION  CON-UUID                              CON-PATH                                           
   wlan0   wifi      connected  /org/freedesktop/NetworkManager/Devices/1  Gattaca     9c0f527f-46e0-47fa-9c0f-cc80891d5cd3  /org/freedesktop/NetworkManager/ActiveConnection/0 
   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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