Laravel Homestead hangs at SSH auth method: private key on mac

I had the same problem on macOS 10.12 today, and lost 6 hours trying to find a fix. Finally, after several reinstallations, reboots, and trial and error, I somehow got it to work by following these steps…

1. Completely uninstall and reinstall Vagrant, VirtualBox, and Homestead.
2. Ensure the homestead-7 box is shut down within the VirtualBox UI
3. Right-click the homestead-7 box, and choose Settings
4. Click ‘Network’
5. Under ‘Adapter 1’, which should be attached to NAT, click ‘Advanced’
6. Tick the box beside ‘Cable Connected’
7. Save settings, and reprovision Homestead with vagrant up --provision
8. Run vagrant reload --provision to reprovision the machine

That should be it! I was able to SSH in after this, but not able to view Homestead sites through the browser (even though I’d configured the /etc/hosts file), but a simple reboot of the Mac seemed to fix this.

Given I don’t know what exactly caused this in the first place, this might just be a bit of luck for my case, but let me know how you get on.