X370 Fatal1ty Gaming K4 - NIC not recognized

Hey guys.

So i just installed my new Ryzen system yesterday, and apart from some driver problems it went pretty smooth.

However today i've been having intermittent networking problems with the ethernet adapter getting disabled by Windows 10 with the error: "Windows has stopped this device because it has reported problems. (Code 43)".
I tried removing and reinstalling the drivers to no avail.
At first reenabling the adapter would bring back the connection, but now the adapter is completely gone, even from the device manager.
I then tried a fresh install of Windows 10 and the adapter still doesnt show up in device manager. There are no lights on when looking at the physical port when the computer is turned on, however when turned off the top light blinks orange in a repeating pattern. The light turns off immediatly after turning the PC on. Im pretty much at my witts end here!
I also cleared the CMOS with no effect.
Edit: also trying to install the drivers for the Intel NIC results in the installation wizard saying there are no Intel NICs installed in the system.

I have a gut feeling telling me this might be a dead board but do any of you guys have any insight or something else i can do to troubleshoot this?

Best regards

Edited by Waseh - 24 Apr 2017 at 3:01am

Thanks for the reply.
The problem is that that's excatly the driver I downloaded. Then I tried one from Intels website with the same result before trying the ASRock provided one yet again.

Edit: oh wait I see I might have been unclear - when I wrote "drivers" plural that was just a mistake. It is the single driver file from ASRock (well zip)

Edited by Waseh - 24 Apr 2017 at 6:55am

Yea. Just tried again with the AMD all in one with no change.
It's the fact that the NIC worked out of the box when I first installed Windows 10 (with no drivers installed manually) that irks me the most. Now a fresh install of Windows doesn't even recognized that there's even a NIC present. Also I tried to use the UEFI internet bios update tool to see if that got a connection but that also errors out.

is it working from UEFI?

Alright so I just tried to boot into the UEFI as the NIC showed up briefly in Windows (i haven't reinstalled or done anything yet) and was able to use the internet flash tool to connect and show me an available update. I left the computer running to see if I would see the same behavior as I do in windows with the NIC crapping out after 5 minutes, and I see the exact same thing in UEFI. After about 5 minutes the NIC stopped working and wouldn't connect to the server. I also tried switching the Ethernet cable and trying a different port on my switch.

This rules out a driver problem right? I suppose the next step is to see if the case is creating some sort of short.