Do I need to disable IPv6 to use a VPN?

You likely won’t need to. Most good modern VPNs support both IPv4 and IPv6. However, if your VPN doesn’t handle IPv6 traffic properly, it can cause IPv6 leaks , which will expose your real IP to the world. In that case, disabling IPv6 can be a workaround to ensure your VPN is fully protecting the privacy of your traffic.

Is it safe to disable IPv6 on my computer?

Yes, it is generally safe to disable IPv6 for most home and office users. Many networks and services still use IPv4 , and vital internet activity won’t be affected. However, some newer services or enterprise environments might rely on IPv6, so it’s good to test your setup’s performance after disabling it.

What problems can happen if I disable IPv6?

Disabling IPv6 might cause connectivity issues on IPv6-only websites . It can also cause delays in DNS resolution if your system is expecting an IPv6 response before falling back to IPv4 (though this is typically not a problem if you’re using a modern operating system). Finally, some specific Microsoft services or features like DirectAccess depend on IPv6, but this is only going to be a problem on corporate networks.

Can I re-enable IPv6 after disabling it?

Yes, of course. The simplest way is to just follow the steps we’ve outlined above for disabling it , and then check the box which you previously unchecked to re-enable it. For example, for Windows 11, you’d go to Settings > Network & Internet > Advanced network settings , choose your internet connection, click on Edit , and make sure you check the box next to Internet Protocol Version 6 (TCP/IPv6), and click OK .

Does disabling IPv6 help with online privacy?

Potentially, yes — but it depends on other factors. If your VPN doesn’t support or block IPv6, then IPv6 traffic may leak outside the VPN tunnel, exposing your private details, such as your IP address, to the world. Disabling IPv6 can help reduce the risk of IP leaks , making your VPN more effective. However, on its own, disabling IPv6 won’t make any meaningful changes to your privacy settings unless it’s part of a broader privacy setup.

Articles by Paige Henley

Paige Henley

Paige Henley was an editor at SafetyDetectives. She has three years of experience writing and editing various cybersecurity articles and blog posts about VPNs, antivirus software, and other data protection tools. As a freelancer, Paige enjoys working in a variety of content niches and is always expanding her knowledge base. Outside of work, she raises orphaned neonatal kittens, works on DIY projects around the house, and enjoys movie marathons on weekends with her husband and three cats.