Driver problems windows 8 tp-link w422g

[rckz]

Hey guys,
My problem is that, if I install the beta driver of this:http://www.tp-link.com/en/support/download/?model=TL-WN422G&version=V2

It finishes installation and works, but the download speed is very slow. I tried to turn off QoS package service (or something like this), tried to reinstall it, tried to turn off that power saving thing and I think I tried everything. The Win 8 I installed is Windows 8 Professional x64

 

[Emerald]

have you tried disabling IP6?

have you tried installing the Windows7 drivers?

Atheros, chipset manufacturer, does not have any Windows8 drives listed either