At least part of this is ubuntu specific. The distribution patch lp341684_device_sensitive_disconnect_notify.patch
in the package network-manager-applet sets this notification importance to NOTIFY_URGENCY_CRITICAL. I can confirm that if you change this to NOTIFY_URGENCY_NORMAL, the notification disappears after the timeout Apparently, gnome-shell keeps on showing NOTIFY_URGENT_CRITICAL notifications, even if they are marked as "transient". The ubuntu- specific patch assumes the unity behavior. This is probably the cause of the bug. I'm marking network-manager-applet as affected. ** Also affects: network-manager-applet (Ubuntu) Importance: Undecided Status: New -- 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/883443 Title: GNOME Shell 3.2.0 falsely states: "Network Disconnected - you are now offline" Status in “gnome-shell” package in Ubuntu: Confirmed Status in “network-manager-applet” package in Ubuntu: New Bug description: GNOME Shell 3.2.0 falsely reports in the bottom middle for more than 30 minutes: "Network Disconnected - you are now offline". The contrary is true: I am online and I can connect to an arbitrary Internet address web site via Firefox. I expect that GNOME Shell does not make this false notification. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: gnome-shell 3.2.0-0ubuntu1 ProcVersionSignature: Ubuntu 3.0.0-12.20-server 3.0.4 Uname: Linux 3.0.0-12-server x86_64 ApportVersion: 1.23-0ubuntu3 Architecture: amd64 Date: Sat Oct 29 13:32:59 2011 InstallationMedia: Ubuntu-Server 11.04 "Natty Narwhal" - Release amd64 (20110426) ProcEnviron: PATH=(custom, user) LANG=de_DE.UTF-8 SHELL=/bin/bash SourcePackage: gnome-shell UpgradeStatus: Upgraded to oneiric on 2011-09-29 (30 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/883443/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp