Before we go any further, we would like to know if you're experiencing any situation with the Bluetooth* connection or is just looking for the drivers.
As for the Intel® Dual Band Wireless-AC 7260, the latest drivers complies with the latest Bluetooth* standards, you can find the latest Bluetooth* drivers here: Intel® PROSet/Wireless Software for Bluetooth® technology for Windows® 10 - Version 18.16.1
We also would like to bring to your attention that for this adapter, there are two different versions, one specifically made for desktops and another one for laptops. A laptop version installed in a desktop may not function as expected. Please check the links below for further information:
Intel® Dual Band Wireless-AC 7260 + Bluetooth* for Desktops
Intel® Dual Band Wireless-AC 7260 + Bluetooth for Desktops - PRODUCT BRIEF
Intel® Dual Band Wireless-AC 7260 + Bluetooth
Intel® Dual Band Wireless-AC 7260 + Bluetooth - PRODUCT BRIEF
*The laptop version is meant to be installed by computer manufacturers only as they adapt both system and adapter for fully compatibility and functionality.
Now, looking at the motherboard, this model: Intel® Desktop Board DB85FL has reached end of interactive support, as you can confirm here : Intel® Desktop Board DB85FL and may not be fully compatible with the features that the adapter has.
Please, let us know if you have any more questions or doubts about this matter as we will be more than glad assist you with whatever is within our reach regarding the subject in discussion.
Please, let us know if you have any more questions or doubts.
It has been a while since we have interacted and so far there is no registration of any reply from you. We would like to know if you still need our support. Please let us know as soon as you can.
I have the latest drivers from Intel, version 18.1.1611.3223. They do not support the APTX bluetooth audio protocol. I am guessing that you do not have APTX drivers for this board. Please confirm that Intel can or cannot provide drivers for this board that support APTX.
Intel used to provide the APTX* for the OEM (Original Equipment Manufacturer) to install. Could you please check with the Bluetooth* audio device in order to obtain more information.
It's been a while since we have heard from you. We would like to know if you still need our assistance. Please let us know as soon as you can.