Funnily enough, I have the EXACT same problem as you, again, after the latest MS update. The only difference I have is that my wifi and Bluetooth are fine however, my ethernet connection has gone. My issues are identical. The drivers are all installed on device manager but I can't activate them no matter what.Wondering if anyone can help me please?
After windows 10 updates occurred on 5th Oct my wireless and bluetooth adapters became inoperable and have now disappeared from my network connections. Only have ethernet adapter.
I have had no previous problems with wireless or bluetooth on my SP3
Drivers are all listed in device manager and supposedly working properly. Have the lastest firmware update successfully installed (29/09/2015).
Microsoft told me to wait for next update and this has occured and I still have no wireless or bluetooth. I have uninstalled and reinstalled drivers.
I'm not a computer tech and my mobile office is crippled! Help please!
I've given up on the issue now and decided to reinstall windows 10. This has turned out to be a nightmare also as I don't have a USB image to reinstall.