this seems like it might be related to bug #38329 and I've got the same issue as cyrilo on an hp laptop. I can connect fine, using the bcm43xx module and wpa_supplicant. I close the laptop screen, putting the machine to sleep. When I open it back up, network manager claims to be connected, but I have a message in /var/log/syslog saying the the device isn't ready. Unloading and reloading the module, then restart dbus gets things working again.
-- bcm43xx hangs after hibernate https://launchpad.net/bugs/54092 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
