Fix TAP Adapter Issues on Windows

TAP Adapter Error

If you’re seeing a “TAP Windows adapters are currently in use” error, this guide will help you fix it.

The TAP driver is only used by OpenVPN-based manual setups on Windows, such as the community OpenVPN GUI or OpenVPN Connect clients. If you set up VPNBaron manually with an OpenVPN client, this page is for you. Not sure what the TAP adapter even is? Start with the plain-language explainer: What Is the TAP-Windows Adapter?

Using the VPNBaron app?

The native VPNBaron app for Windows does not use a TAP adapter, so it avoids TAP issues entirely. If you keep running into TAP errors, switching to the app is the simplest fix.

Error Message

You may see this error when trying to connect:

All TAP Windows adapters on this system are currently in use.
Exiting due to fatal error

This error occurs because the TAP network adapter (used by OpenVPN) is not responding properly.

Quick Fix: Reset the TAP Adapter

Try this simple solution first:

1. Open Network Connections

   Right-click the WiFi icon in your system tray and select “Open Network and Sharing Center”

2. Go to Adapter Settings

   Click “Change adapter settings” in the left sidebar

3. Find the TAP Adapter

   Look for an adapter named “TAP-Windows Adapter” or similar

4. Disable the Adapter

   Right-click the TAP adapter and select “Disable”

   Wait 5-10 seconds

5. Enable the Adapter

   Right-click the TAP adapter again and select “Enable”

6. Try Connecting

   Open your OpenVPN client and try connecting again

Success Rate

This quick fix resolves the issue in most cases. If it doesn’t work, try the reinstallation method below.

Permanent Fix: Reinstall Your OpenVPN Client

If the error keeps coming back, reinstall your OpenVPN client to get a fresh TAP adapter:

1. Uninstall the OpenVPN Client

   • Go to Settings → Apps → Apps & features
   • Find your OpenVPN client (e.g. OpenVPN GUI or OpenVPN Connect) in the list
   • Click Uninstall

2. Restart Your Computer

   This ensures all components are fully removed

3. Reinstall the OpenVPN Client

   Download and install the latest version from the official OpenVPN website: OpenVPN Community Downloads

   The installer will automatically install a fresh TAP adapter

4. Connect to VPN

   Open your OpenVPN client and connect - the error should be resolved

Alternative: Reinstall TAP Driver Manually

If reinstalling the OpenVPN client doesn’t help, you can reinstall just the TAP driver:

1. Check for Existing TAP Driver

   Navigate to C:\Program Files\TAP-Windows to see if it exists

2. Uninstall TAP-Windows

   • Go to Control Panel → Programs → Programs and Features
   • Find TAP-Windows in the list
   • Click Uninstall

3. Download TAP Driver

   Get the latest TAP-Windows driver from the official OpenVPN website: OpenVPN TAP Driver Downloads

4. Install the Driver

   Run the downloaded installer as administrator

5. Restart Your OpenVPN Client

   Close and reopen your OpenVPN client, then try connecting

Still Having Issues?

If none of these solutions work:

1. Check for Conflicts

   • Uninstall any other VPN software that might be using TAP adapters
   • Temporarily disable antivirus software to test

2. Run as Administrator

   • Right-click your OpenVPN client
   • Select “Run as administrator”

3. Switch to the VPNBaron App

   • The VPNBaron app for Windows doesn’t rely on TAP drivers at all

4. Contact Support

   • Submit a support ticket
   • Include the full error message
   • Let us know which solutions you’ve tried

Windows Compatibility

This issue can occur on Windows 10 and Windows 11. The solutions above work for both versions.

Prevention Tips

To avoid TAP adapter issues:

• Keep your OpenVPN client updated to the latest version
• Don’t install multiple VPN applications that use TAP drivers
• Restart the TAP adapter if you notice connection issues
• Run your OpenVPN client as administrator if you experience frequent problems
• Or skip TAP entirely by using the VPNBaron app