Have Qualcomm Atheros Bigfoot Killer network card? Can't play? Read

Ever since day one of release I was having problems connecting to multiplayer games. I would look at my event viewer and would find a ton of errors due to BFLLR.dll. This error was causing bf4 to stop responding and crash. My motherboard manufacturer has not posted any updated drivers since 2012 so I checked the killer gaming website. Killer networks has appeared to have updated drivers compared to what I was running.
http://www.killergaming.com/support/driverdownloadsupport

I have the Killer e2200 hardware and so far this has solved all of my bf4 crashing issues.

Before running anything download the software as well as the killer cleaner. Once everything is downloaded uninstall your qualcomm software drivers, follow directions to restart if needed. Then run the killer cleaner. This will ask for a restart. After your final restart begin to reinstall the drivers downloaded from the killer gaming website. I was then able to successfully load into multiplayer without any crashes or problems for many hours. For me, my problems seem to have been fixed.

This only seems to be good for bigfoot killer network cards as I have not tried it on anything else and that BFLLR.dll was the only error other than a bf4.exe problem.