This bug also affect me. Sadly I could not tell when it happen because almost always I use already known wifi hotspots. But when it happens I recognise the following symptoms:
* The More Networks menu is empty * The VPN Connections menu also empty * Could not connect any of the wifi connection from the list The nmcli command is working, so I could connect to the VPN's if I need. The pkill nm-applet/nm-applet & is working for me (I tried it just now). When I started the nm-applet I find the following writing in the terminal (it maybe not related): sasa@mochrul:~$ nm-applet & [1] 29030 sasa@mochrul:~$ ** Message: applet now removed from the notification area ** Message: No keyring secrets found for <REMOVED>/802-11-wireless-security; asking user. (nm-applet:29030): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed ** (nm-applet:29030): WARNING **: Failed to show notification: GDBus.Error:org.freedesktop.Notifications.MaxNotificationsExceeded: Exceeded maximum number of notifications ** (nm-applet:29030): WARNING **: Failed to show notification: GDBus.Error:org.freedesktop.Notifications.MaxNotificationsExceeded: Exceeded maximum number of notifications ** (nm-applet:29030): WARNING **: Failed to show notification: GDBus.Error:org.freedesktop.Notifications.MaxNotificationsExceeded: Exceeded maximum number of notifications ** (nm-applet:29030): WARNING **: Failed to show notification: GDBus.Error:org.freedesktop.Notifications.MaxNotificationsExceeded: Exceeded maximum number of notifications ** (nm-applet:29030): WARNING **: Failed to show notification: GDBus.Error:org.freedesktop.Notifications.MaxNotificationsExceeded: Exceeded maximum number of notifications ** (nm-applet:29030): WARNING **: Failed to show notification: GDBus.Error:org.freedesktop.Notifications.MaxNotificationsExceeded: Exceeded maximum number of notifications ** (nm-applet:29030): WARNING **: Failed to show notification: GDBus.Error:org.freedesktop.Notifications.MaxNotificationsExceeded: Exceeded maximum number of notifications ** (nm-applet:29030): WARNING **: Failed to show notification: GDBus.Error:org.freedesktop.Notifications.MaxNotificationsExceeded: Exceeded maximum number of notifications ** (nm-applet:29030): WARNING **: Failed to show notification: GDBus.Error:org.freedesktop.Notifications.MaxNotificationsExceeded: Exceeded maximum number of notifications ** Message: No keyring secrets found for Auto <REMOVED>/802-11-wireless-security; asking user. (nm-applet:29030): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed ** (nm-applet:29030): WARNING **: Failed to show notification: GDBus.Error:org.freedesktop.Notifications.MaxNotificationsExceeded: Exceeded maximum number of notifications ** Message: No keyring secrets found for Auto <REMOVED>/802-11-wireless-security; asking user. (nm-applet:29030): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed ** (nm-applet:29030): WARNING **: Failed to show notification: GDBus.Error:org.freedesktop.Notifications.MaxNotificationsExceeded: Exceeded maximum number of notifications -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager-applet in Ubuntu. https://bugs.launchpad.net/bugs/1011073 Title: NetworkManager submenus sometimes unpopulated Status in “network-manager-applet” package in Ubuntu: Triaged Bug description: Submenus in Network Manager are sometimes unusable as they are not populated. This happens both with the list of available networks and with the VPN list. When the bug happens, it occurs for *both* the wireless submenu and the VPN menu. I know there are entries for those submenus as I can see them with other network UI mechanisms. The issue is intermittent. Expected: Dropping down the menu then hovering over the submenu trigger-point (example: "More networks") shows the additional expected entries (example: more wifi networks to choose from). Actual: Dropping down the menu and hovering over the submenu trigger displays a submenu but the submenu has nothing in it and is unusable. Ubuntu 12.04 network-manager 0.9.4.0-0ubuntu4.1 Apple Macbook Pro 8,1 03:00.0 Network controller: Broadcom Corporation BCM4331 802.11a/b/g/n (rev 02) 02:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM57765 Gigabit Ethernet PCIe (rev 10) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager-applet/+bug/1011073/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

