Qualcomm is a manufacturer of mobile telecom equipment. Qualcomm Atheros is the name of its range of WiFi network cards. Computers with Qualcomm Atheros cards usually have a tool, called Qualcomm Atheros Killer Network Manager, installed by default. This is a program used to control the bandwidth of the computer to prioritize video game data over other data. If you have accidentally-or purposefully-uninstalled this driver and would like to reinstall it, this article will show you how to do so.