Hello,
I've got a problem with my Acer Aspire VN7-791.
I've reinstalled Windows 8.1 and I have some issues with the Wifi card.
I've first tried to install the drivers I found on the website, and no one of them could make work (The system still couldn't recognize the wifi card)
Then I tried to install the driver of the official site, and with this one :
http://www.killernetworking.com/support/driver-downloads/standard-drivers
The system detected the wifi card and I can now see the SSID of the networks around me.
But when I tried to connect to my network, I couln't, I have a "Can not connect to the network." from windows.
I have a Linux dual boot and on it just works fine, I can see the networks around me and I can connect to mine.
My wifi card is a "Qualcomm Atheros QCA61x4 Wireless Network Adapter".
On another hand, I can still use the hosted network functionnality of the wifi card, if that information could help.
Also, for some reason, I can't use the Acer Care Center, it says my PC is not supported.
Thank you in advance for your help and sorry for my bad english.