This is certainly not caused by NetworkManager, we've had similar issues before, they are usually caused by the pm-utils package. Regardless, it is a bug in the driver if power management makes it lose connections or unable to connect (thus I'm reassigning this to the linux package).
As a workaround, please try to remove or disable the following script: /usr/lib/pm-utils/power.d/wireless Thanks! ** Package changed: network-manager (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/819239 Title: NetworkManager turn-on power managment of wireless Status in “linux” package in Ubuntu: Incomplete Bug description: I turn off the power managment of wireless network with the command: sudo iwconfig wlan0 power off after some minutes the power managment return to on and the connection to network failed. NetworkManager say that the password of wireless (WPA2) not correct but its yes. I success to connect to wireless only if I restart deamon of NetworkManager. I use Arch linux with Gnome. My network card is RaLink RT2500. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/819239/+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
