Tried this drivers in a clean Windows 8.1 installation: https://downloadcenter.intel.com/Detail_Desc.aspx?DwnldID=24220
Always same problem. Seems to work good for few minutes, and then while downloading the signal suddenly goes down and pause or interrupt the download left (random, and I've faced this problems with so many softwares).
After losing the patience to do a fresh install every time that a new driver comes out (again, I use this device on a workstation, and not to play but to work), I decided to give up, I bought a usb wifi adapter that cost something like 15 € with AC specs,, signal at peak, any interruption, no need for a clean installation of Windows 8.1 pinpoint exact same position of the workstation, router etc.
Goodbye Intel, you've lost a customer.
PS: Please, next time do more tests before commercialise this products.
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