My adapter is always gone from resuming from sleep. I know it was working before. Just changed my ram and bios settings from a fresh build. Went from Corsair xms3 to G.Skill Ripjaws.
I am having this same issue with my newly built pc. The drive running Windows 7 is from a laptop where the mobo died. I am using it in AHCI mode because my case has a front hot swap caddy.
I have a Gigabyte Z68X-UD3H-B3 mobo and after installing and uninstalling drivers, software, changing settings, removing ram, changing power options to maximum power for pci card and wifi, turning off hibernate, restarted, rebooted, updated all drivers from Gigabyte, chipset drivers, etc. I have unchecked "allow Windows to turn off this device". Restarted and tested and I get the same issue. I have unchecked this box in all of my networking devices too including, 802.11n Wireless Lan Card #2 and Microsoft Virtual Wifi Miniport Adapter. Also, uninstalled and reinstalled these and updated drivers from my disc that came from Gigabyte as well as driver update from the Gigabyte website.
Nothing I do will turn on my wifi card after sleep. Windows will not see a network adapter. Everything works fine after restarting though. I have S3 enabled in bios as that is what I want. I have case fans that I don't want to hear with no option to turn them off. Otherwise, i'd be fine with S1.
Is this just not a working feature? I've read that sleep is an ongoing issue with Windows, but my pc sleeps fine. I just want to be able to put my pc to S3 sleep and resume with a working wifi card. There must be a key setting i'm missing because i'm sure it was working with my last set of ram.