Vagrant + VirtualBox + New Windows 10 Update = OH NO!

A quick post for others that might experience this same problem. Last night Windows 10, with its forced updates, provided me with the big update we've all been waiting for. As I awake, ready to go to work on Drupal 8 upgrades, I tried to start my Vagrant and jump right in. Suddenly I was hit with an error about the connection being in use. Quickly I opened VirtualBox and upgraded that. Once that updated, along with the extension pack, the error still persisted. Trying to open the boxes right from VirtualBox gave me a few more details about the error, but not much more.

Finally a bit of Googling and limiting the results to the past week, I got a clue on Stack Overflow. It seems either VirtualBox or Windows 10 upgrade (or both) don't like the new NDIS6 Bridged Driver and had disabled it. The fix turned out to be quick and easy. Go into your network adapter properties and enable VirtualBox NDIS6 Bridged Networking Adapter. If it's enabled, then disable it, click ok, and then re-enable it.

After that you should be good to go. A simple fix, but one that can quickly lead to the fears of an entire day of work being lost.