Comment 57 for bug 1349572

I found another upstream fix related to the recovery from missed beacons for drivers like iwlwifi, so I think it's worth giving that a try. I backported it to 3.13 and posted the build here:

  http://people.canonical.com/~sforshee/lp1349572/linux-3.13.0-32.57+lp1349572v201408111147/

Please try it out and let me know if it works any better. Thanks!