NM can't connect to another, known, Wi-Fi network after resume from suspend; reboot fixes it

[Teo]

Usually I connect to wifi networks just fine.

Now I suspended (while I was connected to a network) and moved the computer to another place.

When I resumed, the icon in the notification area correctly displayed that it was disconnected. The network to which I was connected prior to suspend was not available and there were other networks available.

When I selected one of the available newtorks (one to which I often connect and whose password is stored) nothing happened: it didn't even try to connect. I tried several times with the same result: it would just do nothing.
I also tried to connect to different network, and _nothing_ happened (it should have prompted me for password).

Rebooting fixed the issue.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: network-manager 0.9.4.0-0ubuntu4.1
ProcVersionSignature: Ubuntu 3.2.0-25.40-generic 3.2.18
Uname: Linux 3.2.0-25-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu9
Architecture: i386
CRDA:
 country ES:
  (2402 - 2482 @ 40), (N/A, 20)
  (5170 - 5250 @ 40), (N/A, 20)
  (5250 - 5330 @ 40), (N/A, 20), DFS
  (5490 - 5710 @ 40), (N/A, 27), DFS
Date: Tue Jun 12 16:19:57 2012
IfupdownConfig:
 auto lo
 iface lo inet loopback
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
IpRoute:
 default via 192.168.1.1 dev wlan0 proto static
 169.254.0.0/16 dev wlan0 scope link metric 1000
 192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.54 metric 2
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
ProcEnviron:
 TERM=xterm
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: network-manager
UpgradeStatus: Upgraded to precise on 2012-05-17 (25 days ago)
nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH
 wlan0 802-11-wireless connected /org/freedesktop/NetworkManager/Devices/1
 eth0 802-3-ethernet unavailable /org/freedesktop/NetworkManager/Devices/0
nmcli-nm:
 RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN
 running 0.9.4.0 connected enabled enabled enabled enabled disabled

[Launchpad Janitor (janitor)]

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

[Teo (teo1978)]

Now that I review this, I think it's a dup of https://bugs.launchpad.net/ubuntu/+source/network-manager-applet/+bug/1019395

[Thomas Hood (jdthood)]

#1019395 reports similar behavior "at random times", not after resume, so it *may* not be a duplicate.

[Thomas Hood (jdthood)]

If #1011073 happens on resume then this (#1012154) should be linked with that (bug #1011073).

[Mathieu Trudel-Lapierre (cyphermox)]

This is basically the same kind of issue as bug 1019395. Marking as a duplicate.