network-manager fails to connect on wakeup

[svenmeier]

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'.

[svenmeier (sven-meiers)]

- 07:06:51 toggling Wifi block does not help
- 07:15:16 toggling Wifi block does not help
- 07:15:56 restarting network-manager reestablishes wifi connection

[Launchpad Janitor (janitor)]

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