Network not reconnecting after wakeup from suspend

[M.C. Botha]

After closing laptop lid and later waking up, the network occasionally is unable to reconnect.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: network-manager-gnome 0.9.8.8-0ubuntu3
ProcVersionSignature: Ubuntu 3.13.0-18.38-generic 3.13.6
Uname: Linux 3.13.0-18-generic i686
ApportVersion: 2.13.3-0ubuntu1
Architecture: i386
CurrentDesktop: Unity
Date: Wed Mar 19 12:10:07 2014
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2014-03-05 (14 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha i386 (20140304)
IpRoute:
 default via 10.230.24.1 dev wlan0 proto static
 10.230.24.0/21 dev wlan0 proto kernel scope link src 10.230.24.80 metric 9
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
 WimaxEnabled=true
SourcePackage: network-manager-applet
UpgradeStatus: No upgrade log present (probably fresh install)
ftp_proxy: ftp://10.0.8.254:8080/
http_proxy: http://10.0.8.254:8080/
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
no_proxy: localhost,127.0.0.0/8,::1

[Launchpad Janitor (janitor)]

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

[John Ross (johnross-johnross)]

Noticed this with xubuntu 14.04 final beta x64.

[nicolas kleinklaus (nknico)]

Same problem here with 14.04 and ralink rt73 chipset. Worked perfectly with 13.10

Not related with SUSPEND_MODULES="rt73usb" in /etc/pm/config.d/load (already done and doesn't resolve).

sudo rfkill list
1: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no

[nicolas kleinklaus (nknico)]

This is duplicate of #1286552, there are 24 people affected and many others duplicates :

    Bug #1290055
    Bug #1293928
    Bug #1294576
    Bug #1295285
    Bug #1309769

And nobody is assigned to ??

[nicolas kleinklaus (nknico)]

Not a isolated problem :

http://ubuntuforums.org/showthread.php?t=2218043
http://ubuntuforums.org/showthread.php?t=2218445

[nicolas kleinklaus (nknico)]

kernel 3.14-1 from http://kernel.ubuntu.com/~kernel-ppa/mainline does'nt resolve the problem

[nicolas kleinklaus (nknico)]

Maybe it's not kernel related, cause actualy with 3.11 on 14.04, the wifi doesn't reconnect after suspend either...

[Sergio Callegari (callegar)]

I see it on a laptop that does not connect automatically to the wireless network after wakeup. But I have the same issue also with a desktop with wired ethernet.

After a suspend/resume cycle, network manager does not reconnect.

For the desktop, given that this used to be a machine going to sleep when unused and being waken from the lan, the issue is pretty bad. The machine wakes... but with no network. Network manager stays there for ever, with the connection ready and selected for automatic connection, but does not even try to start the connection.

This is something recent. It used to work just fine with 14.04.