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How to resolve VPN error 720 on Windows 7?

How to resolve VPN error 720 on Windows 7?

Ethan Martinez

July 3, 2025

Blog

If you’ve ever encountered a VPN Error 720 while trying to connect on Windows 7, you’re not alone. This pesky issue can stop your secure network connection in its tracks and make remote work or private browsing difficult. Fortunately, there are ways to identify and resolve this error efficiently, getting you back up and running with your virtual private network. In this guide, we’ll walk you through what VPN Error 720 means, why it occurs, and the steps you can take to fix it without too much hassle.

What is VPN Error 720?

VPN Error 720 is a connection problem that occurs in Windows 7 (and sometimes other versions), usually when the system is unable to establish a connection with the PPP (Point-to-Point Protocol) server. The full error message often reads: “Error 720: A connection to the remote computer could not be established. You might need to change the network settings for this connection.”

This error is typically associated with issues in TCP/IP configuration or WAN Miniport adapters. It may surface after a system update, network driver issues, or incorrect VPN settings.

Common Causes of VPN Error 720

Understanding what triggers Error 720 on Windows 7 is the first step to resolving it. Some of the most common causes include:

  • Corrupted or missing WAN Miniport drivers
  • Misconfigured VPN settings
  • Incorrect or outdated TCP/IP configurations
  • Conflicts between network adapters
  • Problems with the remote VPN server

Step-by-Step Solutions

Luckily, there are several ways to fix VPN Error 720 on Windows 7. Try each of these steps one at a time and test your connection after each fix to see if the issue has been resolved.

1. Reinstall WAN Miniport Drivers

One of the primary causes of the error is corrupted network drivers, particularly the WAN Miniport adapters.

  1. Open the Device Manager by right-clicking on Computer > Manage > Device Manager.
  2. Expand the category Network adapters.
  3. Right-click on entries named WAN Miniport (IP), WAN Miniport (PPTP), and similar entries, then click Uninstall.
  4. Restart your computer.
  5. Windows should automatically reinstall the necessary drivers. If not, you can re-add them manually using the Add legacy hardware wizard in Device Manager.

Note: It’s important to uninstall all WAN Miniports to ensure complete reinstallation.

2. Reset TCP/IP Stack

Resetting the TCP/IP stack can resolve issues if the stack has become corrupted or misconfigured.

  1. Click Start > All Programs > Accessories, then right-click Command Prompt and click Run as Administrator.
  2. In the command prompt, type the following and press Enter:

    netsh int ip reset resetlog.txt
  3. Restart your computer and try connecting to the VPN again.

3. Check VPN Server Configuration

If you’re still running into issues, the problem may lie with the VPN server itself. Double-check with your VPN provider or administrator to ensure that:

  • Your username and password are correct
  • The server address is up to date
  • The server supports PPTP or whichever protocol you’re using

4. Manually Create a New VPN Connection

Sometimes, discarding the old connection entirely and rebuilding it from scratch can help.

  1. Go to Control Panel > Network and Sharing Center > Set up a new connection or network.
  2. Select Connect to a workplace > Use my Internet connection (VPN).
  3. Enter the VPN server details and user credentials.
  4. Save the connection and try connecting again.

Preventing VPN Error 720 in the Future

Once you’ve successfully resolved the error, there are a few best practices that can help prevent future VPN issues:

  • Keep your network drivers up to date
  • Use reliable VPN software and keep it updated
  • Avoid making unnecessary changes to network settings
  • Regularly scan your system for malware that can interfere with network functions
  • Perform routine maintenance on Windows networking components

Conclusion

While VPN Error 720 can be a frustrating roadblock, it usually has a straightforward solution. Whether it’s reinstalling WAN Miniports, resetting TCP/IP settings, or rebuilding the VPN connection, these steps should help get you back on a secure and stable VPN connection in no time. If all else fails, getting in touch with your VPN provider’s tech support may reveal server-side issues or advanced troubleshooting steps you can take.

Always remember: a smooth VPN connection is critical for secure browsing, especially when using public or unsecured networks. Resolving error 720 not only restores your access but also protects your online privacy and data integrity.