Network Manager Applet doesnt show wireless networks and connections

[Ruben Rocha]

After a fresh install of 12.04 latest daily build, network manager applet works ok but after some reboots the wireless networks list and connections doesnt show up.

If i go to system settings-network i can choose one of the wireless networks available and connect.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: network-manager-gnome 0.9.4.1-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.0.1-0ubuntu5
Architecture: amd64
Date: Sun Apr 22 17:31:28 2012
ExecutablePath: /usr/bin/nm-applet
IfupdownConfig:
 auto lo
 iface lo inet loopback
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120421)
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 192.168.1.104 metric 2
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
 WimaxEnabled=true
SourcePackage: network-manager-applet
UpgradeStatus: No upgrade log present (probably fresh install)
XsessionErrors:
 (compiz:2706): GConf-CRITICAL **: gconf_client_add_dir: assertion `gconf_valid_key (dirname, NULL)' failed
 (firefox:4032): LIBDBUSMENU-GTK-CRITICAL **: dbusmenu_menuitem_property_set_shortcut: assertion `gtk_accelerator_valid(key, modifier)' failed
nmcli-con:
 NAME UUID TYPE TIMESTAMP TIMESTAMP-REAL AUTOCONNECT READONLY DBUS-PATH
 Rocha - Piso Cave a1744274-1445-4dec-895d-83b1654b1ec8 802-11-wireless 1335112064 Dom 22 Abr 2012 17:27:44 WEST yes no /org/freedesktop/NetworkManager/Settings/2
 Wired connection 1 eb513a5c-b484-46be-a891-53f4df9e8f03 802-3-ethernet 1335111164 Dom 22 Abr 2012 17:12:44 WEST yes no /org/freedesktop/NetworkManager/Settings/1
 ZON-1350 9931e9c2-d905-4dae-80fb-9041ca496309 802-11-wireless 1335110780 Dom 22 Abr 2012 17:06:20 WEST yes no /org/freedesktop/NetworkManager/Settings/0
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 0.9.4.0 connected enabled enabled enabled enabled disabled

[Launchpad Janitor (janitor)]

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

[Edgar Cherkasov (edgar2705)]

I have same bug.

[Ruben Rocha (ruben-silvarocha)]

I can confirm this still happens with 12.04 final release 32bit.

[Michele Dall'Arno (michele-dallarno)]

It also affects 12.04 64bits.

Workaround: by typing

sudo iwlist wlan0 scan

nm applet is made aware of wireless connections available.

[Veleno (veleno)]

It affects only wireless connections or all connection types in network manager (e.g wired, vpn, ecc. )?