If you are encountering this error while using a currently supported Killer Network Adapter, such as the Killer E2200, E2400, E2500 or any Killer Wireless Adapter, we suggest clean-installing the latest Killer Control Center.
Click here for our guide on clean installing the latest Killer Control Center.
A software update is needed. You should update to the latest drivers available from your network card manufacturer. If updating from the card’s manufacturer does not resolve the issue, try installing these drivers, which are the latest drivers of which we are aware for legacy Bigfoot adapters:
https://www.visiontek.com/support/download-drivers.html
A successful update will remedy connectivity errors with iTunes and other Apple software.