Comment 56 for bug 1286552

My comment #41 above does not fully apply. It turned out that removing "iwlwifi" from SUSPEND_MODULES="" in /etc/pm/config.d/config (I had to add it in 13.10 in order to get it working) fixed the issue for me. However this seems to imply that unloading the driver will break wifi, even if network-manager is restarted. My install was not a fresh install so I cannot judge if that would work either.