So just today i was going though my system and updating some drivers. I decide to update my Killer e2200 that came with my MSI Z77a-G45 Gaming motherboard. After updating my NIC, i could not connect to internet. I opened CMD and inputted ipconfig. I noticed that my NIC wasnt listed in the list but yet when I goto my network connections it was there. What I did nest was right-clicked on the NIC's properties and looked at the connection uses. I noticed a new connection there called Qualcomm Atheros Bandwidth Control. I uninstalled it and my NIC auto connected to my router. If anyone here has the Killer e2200 and cannot connect to the interwebs, try this and see if you can connect.