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[Bug 1340730] [NEW] WiFi network connection unstable after upgrading from 12.04 to 14.04

 

Public bug reported:

After upgrading from 12.04 to 14.04 on a Dell Vostro 3400 the Wi-Fi
network connection became unstable: no automatic connection on start up
and no network at all after resuming from an hibernation. Both of them
were working previously.

This reports relates to #1340729.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: network-manager 0.9.8.8-0ubuntu7
ProcVersionSignature: Ubuntu 3.13.0-30.55-generic 3.13.11.2
Uname: Linux 3.13.0-30-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
Date: Fri Jul 11 09:45:25 2014
ExecutablePath: /usr/sbin/NetworkManager
IfupdownConfig:
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2010-09-25 (1385 days ago)
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Beta amd64 (20100901.1)
IpRoute:
 default via 10.161.1.5 dev tun0  proto static 
 10.161.1.1 via 10.161.1.5 dev tun0  proto static 
 10.161.1.5 dev tun0  proto kernel  scope link  src 10.161.1.6 
 192.168.0.0/24 dev wlan0  proto kernel  scope link  src 192.168.0.15  metric 9 
 209.222.15.230 via 192.168.0.1 dev wlan0  proto static
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=false
ProcEnviron:
 LANGUAGE=pt_BR:es_MX:en
 TERM=linux
 PATH=(custom, no user)
 LANG=pt_BR.UTF-8
SourcePackage: network-manager
UpgradeStatus: Upgraded to trusty on 2014-07-07 (3 days ago)
nmcli-dev:
 DEVICE     TYPE              STATE         DBUS-PATH                                  
 eth0       802-3-ethernet    unavailable   /org/freedesktop/NetworkManager/Devices/1  
 wlan0      802-11-wireless   connected     /org/freedesktop/NetworkManager/Devices/0
nmcli-nm:
 RUNNING         VERSION    STATE           NET-ENABLED   WIFI-HARDWARE   WIFI       WWAN-HARDWARE   WWAN      
 running         0.9.8.8    connected       enabled       enabled         enabled    enabled         disabled

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


** Tags: amd64 apport-bug trusty

-- 
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https://bugs.launchpad.net/bugs/1340730

Title:
  WiFi network connection unstable after upgrading from 12.04 to 14.04

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

Bug description:
  After upgrading from 12.04 to 14.04 on a Dell Vostro 3400 the Wi-Fi
  network connection became unstable: no automatic connection on start
  up and no network at all after resuming from an hibernation. Both of
  them were working previously.

  This reports relates to #1340729.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: network-manager 0.9.8.8-0ubuntu7
  ProcVersionSignature: Ubuntu 3.13.0-30.55-generic 3.13.11.2
  Uname: Linux 3.13.0-30-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  Date: Fri Jul 11 09:45:25 2014
  ExecutablePath: /usr/sbin/NetworkManager
  IfupdownConfig:
   auto lo
   iface lo inet loopback
  InstallationDate: Installed on 2010-09-25 (1385 days ago)
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Beta amd64 (20100901.1)
  IpRoute:
   default via 10.161.1.5 dev tun0  proto static 
   10.161.1.1 via 10.161.1.5 dev tun0  proto static 
   10.161.1.5 dev tun0  proto kernel  scope link  src 10.161.1.6 
   192.168.0.0/24 dev wlan0  proto kernel  scope link  src 192.168.0.15  metric 9 
   209.222.15.230 via 192.168.0.1 dev wlan0  proto static
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=false
  ProcEnviron:
   LANGUAGE=pt_BR:es_MX:en
   TERM=linux
   PATH=(custom, no user)
   LANG=pt_BR.UTF-8
  SourcePackage: network-manager
  UpgradeStatus: Upgraded to trusty on 2014-07-07 (3 days ago)
  nmcli-dev:
   DEVICE     TYPE              STATE         DBUS-PATH                                  
   eth0       802-3-ethernet    unavailable   /org/freedesktop/NetworkManager/Devices/1  
   wlan0      802-11-wireless   connected     /org/freedesktop/NetworkManager/Devices/0
  nmcli-nm:
   RUNNING         VERSION    STATE           NET-ENABLED   WIFI-HARDWARE   WIFI       WWAN-HARDWARE   WWAN      
   running         0.9.8.8    connected       enabled       enabled         enabled    enabled         disabled

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References