Yesterday evening, before going to bed, I upgraded to Windows 8.1 (laptop came with Windows 8 ). Upon waking this morning I had severe connectivity issues and spent the better part of a production day trying to merely get online. In short, a day meant for getting a bunch of school work done was interrupted with fixing Microsoft's F up.
I finally found the resolution in merely rolling back the wifi adapter's driver to an older version, as the "upgrade" came with a new driver.
If you are experiencing this issue, here's how to deal with it:
http://screencast.com/t/DnGAquqMV24IYou can also do some other things, but I tried every other solution presented online (thanks, iPhone!) and they did not work.
This is the only working solution for my situation.
Regards.