Was there ever a solution found? I am having the exact same issue with my PCE-ac68 card. Installed latest drivers from asus website with no issue. After install the card is recognized in device manager and shows to be working, but when the utility that came with the card is run the error:
"Please connect the asus wireless adapter to your computer before running the utility."
Then in network and sharing center it shows no networks are available, even though my laptop sitting next to my computer is connected with full bars to the router. Only thing strange I can find is in adapter settings the card is "greyed" out. When I click enable, goes through the process of enabling it and then remains greyed out. It says drivers are compatible, and there shouldn't be any conflict with previous drivers since there never was a wireless card installed on this PC prior to this.
Things I tried:
Switching PCIE slots
clean reinstalling drivers in safe mode
using original drivers that came with the card
updating my mobo drivers and BIOS
already exchanged card with another in case of manufacturers defect.....so yeah at a loss. Any Ideas or help would be appreciated. I already tried the links provided by paul NZ no changes.
10-11-14 sooo...update just in case someone else stumbles on this in the future and needs assistance. Problem solved by uninstalling 3rd party firewall. Firewall in this case was zone alarm. Hope this helps