Public bug reported:

When I associate to my access point and get and IP address all is good
and I can ping a known host. However just after seeing the following in
my /var/log/syslog the ping stops and with wireless connection no longer
seems to be passing traffic:

Jun 30 19:12:19 bradf-air NetworkManager[999]: <info> (wlan0): IP6 addrconf 
timed out or failed.
Jun 30 19:12:19 bradf-air NetworkManager[999]: <info> Activation (wlan0) Stage 
4 of 5 (IPv6 Configure Timeout) scheduled...
Jun 30 19:12:19 bradf-air NetworkManager[999]: <info> Activation (wlan0) Stage 
4 of 5 (IPv6 Configure Timeout) started...
Jun 30 19:12:19 bradf-air NetworkManager[999]: <info> Activation (wlan0) Stage 
4 of 5 (IPv6 Configure Timeout) complete.


If I associate to a different SSID the same thing happens. This is 
reproduceable 100% of the time.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: network-manager 0.9.8.0-0ubuntu11
ProcVersionSignature: Ubuntu 3.10.0-1.8-generic 3.10.0-rc7
Uname: Linux 3.10.0-1-generic x86_64
ApportVersion: 2.10.2-0ubuntu3
Architecture: amd64
Date: Sun Jun 30 19:12:46 2013
EcryptfsInUse: Yes
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2013-06-06 (25 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
IpRoute:
 default via 192.168.1.1 dev eth0  proto static 
 192.168.1.0/24 dev eth0  proto kernel  scope link  src 192.168.1.16  metric 1 
 192.168.1.0/24 dev wlan0  proto kernel  scope link  src 192.168.1.17  metric 9
MarkForUpload: True
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
 WimaxEnabled=true
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-con:
 NAME                      UUID                                   TYPE          
    TIMESTAMP    TIMESTAMP-REAL                     AUTOCONNECT   READONLY   
DBUS-PATH                                 
 Wired connection 1        d53beebb-2903-4da4-8715-0f693d784206   
802-3-ethernet    1372644717   Sun 30 Jun 2013 07:11:57 PM PDT    yes           
no         /org/freedesktop/NetworkManager/Settings/2
 warthogs                  9bd2d377-bf62-4915-8a30-52b54cb5228e   
802-11-wireless   1372643917   Sun 30 Jun 2013 06:58:37 PM PDT    yes           
no         /org/freedesktop/NetworkManager/Settings/1
 bjf                       3ee42b4d-d2c3-4bd8-965f-4da2367fd029   
802-11-wireless   1372644723   Sun 30 Jun 2013 07:12:03 PM PDT    yes           
no         /org/freedesktop/NetworkManager/Settings/0
nmcli-dev:
 DEVICE     TYPE              STATE         DBUS-PATH                           
       
 wlan0      802-11-wireless   connected     
/org/freedesktop/NetworkManager/Devices/1  
 eth0       802-3-ethernet    connected     
/org/freedesktop/NetworkManager/Devices/0
nmcli-nm:
 RUNNING         VERSION    STATE           NET-ENABLED   WIFI-HARDWARE   WIFI  
     WWAN-HARDWARE   WWAN      
 running         0.9.8.0    connected       enabled       enabled         
enabled    enabled         disabled

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


** Tags: amd64 apport-bug saucy

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https://bugs.launchpad.net/bugs/1196363

Title:
  network-manager is breaking my wireless during "Stage 5 of 5 (IPv6
  Configure Timeout)"

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