killer e2200 gigabit ethernet adapter dead after driver update

mesterjester

Distinguished
Jul 15, 2013
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18,510
i tried downloading and installing a new device driver from the killer website for my e2200 ethernet adapter on my gigabit z87-g45 motherboard, and after i rebooted my pc, my ethernet card shows a yellow exclamation mark in win 8 device manager and will no longer allow drivers to be loaded for it.

checking the properties in device manager shows this error: the device is not working properly because windows cannot load the drivers required for this device. (code 31)

i've tried uninstalling the drivers and re-installing the drivers that came on the original cd with my motherboard, and i've tried re-downloading the drivers from the killer web site and nothing works. i've also flashed my motherboard bios to the newest version and that didn't help either.

any thoughts on how this broke and how to fix it? i've never had a device driver lock up a piece of hardware. i'm lost and now have no internet on my desktop pc.