Same problem here. Bought the adapter the other day to go with the new AC D-Link router I bought at the same time. Install was problematic but got it to install finally. Adapter blinking along but W7 reports it disabled. Tried enabling it and it dropped back to disabled. Drivers updated to the latest version. Unplugged all USB connections, still wouldnt enable. All other network adapters and drivers uninstalled/disabled. I have know clue where to go from here. :-(