The WireGuard protocol itself does not support 2-Factor Authentication (2FA) for VPN connections. However, when using WireGuard connections with VPN Tracker, you can enhance your overall security by enabling 2FA for your VPN Tracker account.

This means your VPN configuration and access are protected with an additional layer of security, while your WireGuard connections remain end-to-end encrypted for maximum protection.

Using VPN Tracker is the best way to benefit from the performance and security of WireGuard, along with modern account-level protections like 2FA.

If you're experiencing issues with your World Connect connection in VPN Tracker, here's what to do:

1. Contact Support

In VPN Tracker, go to the Help menu and select "Contact Support".
In the window that opens:

• Enter "World Connect Issue" in the subject line.
• Describe the problem you're having so our support team can help you quickly.

2. Try These Steps in the Meantime

• If you're using a country-specific connection (e.g. "United States"), try unchecking the "Fastest Destination" option.
• Once unchecked, you can manually choose from the available cities (e.g. New York, Los Angeles, Miami, etc.).
• Try connecting to a different city to see if the issue is specific to one location.

These steps often help resolve temporary connection issues.

If your VPN stopped working after updating to macOS 26, the built-in VPN client may no longer support the settings your connection requires — especially if you're using older IKEv2 or IPSec configurations with legacy algorithms like 3DES, SHA1, or DH Group 2.

VPN Tracker 365 is the best alternative VPN client for macOS 26. It supports legacy and modern VPN protocols and is fully compatible with older firewall and gateway setups. Whether you're a professional user or connecting to a business VPN, VPN Tracker gives you the tools you need to get back online.

You can download VPN Tracker 365 here and start using it on macOS 26 today.

IKEv1 is still a widely used VPN protocol and remains a solid option in many network environments. While it has some technical limitations compared to newer protocols, it continues to be supported in many systems and VPN solutions. VPN Tracker offers full support for both IKEv1 and IKEv2, so you can choose the protocol that best fits your setup. Want to learn more about the newer IKEv2 protocol? Our blog post on IKEv2 VPN covers its key features.

To get started with WireGuard VPN on your Mac, download VPN Tracker — a professional WireGuard client for macOS. With VPN Tracker, you don’t need to worry about using the Terminal or installing command-line tools. Just import your WireGuard configuration file and connect instantly. The app is compatible with macOS Sonoma and all recent versions of macOS.

➡ Get the download here: WireGuard Mac VPN client download

If your IKEv2 VPN stopped working after updating to macOS 26 Tahoe and uses DES or 3DES encryption, the issue is due to a change in Apple’s VPN implementation. As part of broader security improvements, macOS 26 no longer supports outdated encryption algorithms like DES and 3DES for IKEv2 VPN connections. These algorithms are considered insecure by modern standards and have been removed from the built-in VPN client.

This change affects many older VPN setups—especially those used with legacy firewalls and routers—and leads to connection errors like “No acceptable proposal found” or “IKEv2 negotiation failed.”

VPN Tracker 365 continues to support DES, 3DES, and other legacy algorithms, allowing you to connect to your existing VPN without changing the gateway configuration. Learn more and get your VPN working again by following this step-by-step guide.

The best Mac VPN client is one that runs natively on macOS, is regularly updated, and supports all major protocols. VPN Tracker 365 is designed for professionals and supports IPsec, IKEv2, WireGuard®, OpenVPN, and more.

Yes! If you're testing VPN Tracker and run into setup issues or connection problems, you can book a 1:1 consulting session with our in-house experts. We offer real-time support via phone, video call or remote desktop.

Looking for a reliable WireGuard client for Mac? VPN Tracker is the best WireGuard VPN client for macOS, offering a fast, secure, and user-friendly experience. With native support for WireGuard tunnels, an intuitive interface, and full compatibility with macOS Tahoe, VPN Tracker is the ideal choice for professionals and everyday users alike.

➡ Get started here: WireGuard Mac VPN Client

Use VPN Tracker’s configuration wizard to set up your WireGuard® VPN on macOS.

VPN Tracker makes it easy to get started with WireGuard on your Mac. The built-in configuration wizard guides you through importing a config file or setting up your connection manually — fully optimized for macOS including the latest macOS Tahoe release.

Start your WireGuard setup here:

• WireGuard Mac Client – VPN Tracker

IKEv2 consists of two main phases: authentication and tunnel negotiation. In the first phase, both sides verify each other's identity. In the second phase, the secure VPN tunnel is established and encrypted. To understand how this works in practice, check out our blog post on IKEv2 VPN.