I also experience this from time to time on a Fujitsu Lifebook C1211D with an Atheros chipset.
As a workaround, I disable networking (right click nm-applet, uncheck enable networking) and then enable it again. -- Doesn't bring the network back online when resuming from suspend / hibernate https://launchpad.net/bugs/40125 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
