My network adapter driver is always disappearing T^T

[kukuchan]

I don't know what's wrong with my computer or adapter driver. But when i watch videos on youtube or play any video games, my internet always disconnects, at that time i checked my device manager and, i couldn't find my network driver. But when i restart my computer it appears again. This is keep happening again and again. So PLEASE HELP ME T^T

 

[Boozad]

Probably better off asking here Windows 8 Forums