Same here. No network adapters showing up after upgrade to 10. Reverting back to 8.1, they're still there at least. I talked to support, they said there have been other Pro 3's with the same issue, so I would expect some kind of hotfix to come out very soon. If anyone knows when that hotfix will be posted... that would be appreciated.
UPDATE: I uninstalled Hamachi VPN and a Cisco VPN from a while ago, reinstalled Windows 10, and now the adapters are showing up. I'm not sure which it was, but it's fixed for me now.
I had problems with Cisco vpn AnyConnect after upgrading. Like mentioned above, if you uninstall before upgrade, upgrade, and reinstall it afterwards, it works. Still, not the best option for somebody who already upgraded.