Software⏱️ 3 min read📅 2026-06-15

How to Fix: (kindof solved) Ansible can't connect to (reachable) virtualbox VM (preauth error)

Ansible connection issue with Virtualbox VMs on Windows 10

Quick Answer: Try using the `--timeout` option to increase the connection timeout, or check for any recent Windows updates that may be affecting networking behavior.

📋 Table of Contents

  1. ⚠️ Common Causes
  2. 🚀 How to Resolve This Issue
  3. 💡 Conclusion

Ansible is unable to connect to Virtualbox VMs on Windows 10 machines, specifically when using Vagrant to spin up Debian Linux environments. The error occurs during the first connection attempt and results in a preauth error, causing Ansible to hang without any further information.

This issue can be frustrating for users who rely on Ansible for automating tasks and configuring their virtual environments. However, by following this troubleshooting guide, you should be able to identify and resolve the problem.

⚠️ Common Causes

  • The primary reason for this error is a potential timeout issue when connecting to the Virtualbox VMs through Vagrant. This can occur if the network settings or configuration on the Windows machine are not optimal or if there are issues with the Virtualbox VM itself.
  • Another possible cause could be related to the networking behavior of Windows updates, which might affect how Ansible connects to the VMs.

🚀 How to Resolve This Issue

Update Vagrant and Virtualbox drivers

  1. Step 1: Open a command prompt or terminal window and run `vagrant plugin update` to ensure that all necessary plugins are up-to-date.
  2. Step 2: Next, update the Virtualbox driver by running `vagrant plugin update virtualbox` in the same command prompt. This will download and install any available updates for the Virtualbox provider.
  3. Step 3: Restart Vagrant by running `vagrant restart` in the command prompt to ensure that the updated drivers are applied.

Check network settings and configuration

  1. Step 1: Open Windows Settings and navigate to Network & Internet > Network adapter settings. Ensure that the Virtualbox VM is set as an active network adapter.
  2. Step 2: Verify that the Windows Subsystem for Linux (Debian Distro) is configured correctly by running `wsl --list` in a command prompt. This will display a list of available distributions, including Debian.

💡 Conclusion

By following these steps and checking for potential timeout issues or networking behavior changes caused by Windows updates, you should be able to resolve the preauth error when connecting to Virtualbox VMs with Ansible on your Windows 10 machine.

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