I also experienced these errors after upgrading a couple of laptops from Wheezy to Jessie (basically, when attempting to connect to established access points which have been used without issue for ages, a connection failed dialog appears with the original report's libnm-glib error).
I seem to have fixed the issue by the somewhat drastic steps of sudo apt-get purge network-manager-gnome network-manager sudo rm -r -f /etc/NetworkManager/system-connections rm -r -f ~/.gconf/system/networking/wireless/networks sudo apt-get install network-manager-gnome network-manager gnome Then when you try and connect... well it still fails but if you go and edit the connection information to enter the password. Then it connects (reliably, even after reboots). I note Wheezy's behaviour of prompting for a password on the first attempt to connect to an access point which needs one seems to have completely vanished. (In fact I suspect this libnm error dialog is appearing at the point at which the system is trying to prompt the user for a wifi password). FWIW I use Gnome "Flashback" and the issue was seen on a Lenovo S10e and a Thinkpad X40. Tim -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
