This message was posted on behalf of Intel Corporation
It's unlikely that your issue is being caused by your wireless adapter, since you experienced the issue with the Dell* adapter before this one. Please keep in mind that we only provide support for wireless adapters that have been installed by your computer manufacturer, we don't support custom wireless integrations.
Since the "Allow this device to wake the computer" field is grayed out, it's possible that this may be disabled from within your BIOS, which takes precedence over your OS. It may be important to point out that while your wireless adapter works through the PCIe Bus, the Bluetooth* module on your adapter communicates through your computer's USB. You may need to check your BIOS for an "Enable USB Wake" type setting, which may be currently disabled.
Our recommendation in this case will be to contact your computer manufacturer (OEM), as they're the only ones who may be able to provide you with a more definitive response, and hopefully should be willing to point you towards the correct BIOS settings in order to resolve your problem.
@rranger - Google for bth_faq and follow the steps for enabling remote wakeup described in the FAQ. Some OEMs turn the module (BT) power off when the laptop is in standby/sleep mode. In that case, the feature (wake on BT) will not work unfortunately.