On top of that, Windows doesn’t support IPsec NAT-T security associations to servers behind a NAT device by default. When the error appears, the event log too won’t display any related logs because the traffic can’t reach the MX’s WAN interface. But you should be able to solve it on Windows 10. Here’s the error message we’re talking about.

How can I fix VPN error 809 on Windows 10?

In conclusion, you should be able to fix the VPN error 809 on your Windows 10 PC by opening ports in your firewall or router.

Port 1723 over TCP for PPTP Port 500 or 4500 over UDP for L2TP/IPsec or IKEv2/IPsec

If this is not possible, deploy the SSTP- or OpenVPN-based tunnel on your VPN provider. This allows the VPN connection to work across the firewall, NAT, and web proxies. Find out more about how to fix VPN blocked by Windows Firewall. Even if you manage to fix the issue, it doesn’t mean you won’t face it again. So, if you’re looking for a long-term solution to get rid of VPN errors, we suggest opting for Private Internet Access (PIA). It has a native VPN app ready for Windows 10 as well as older Windows versions and other devices: Mac, Linux, Android, and iOS, and even routers. You can use PIA to create a secure tunnel to the public Internet. This way, you can protect your privacy, encrypt your data against any hacker attacks, and unblock content that’s not available to your region. More about PIA:

Support for OpenVPN and WireGuard protocols Native port forwarding Kill switch No logging, no leaks 24/7 live chat support 30-day money-back guarantee (no free trial)

So you should temporarily disable it to see if it’s the root of VPN error 809. Discover more about how to bypass VPN blocks on Windows 10 PC. You can also make a tiny modification to your system registry and check PAP settings when creating the VPN connection. However, the surest way to get rid of VPN errors is by using a native VPN app for Windows instead of setting up a manual VPN connection. And we can’t think of a more suited VPN provider than Private Internet Access (buy here).

We recommend Private Internet Access, a VPN with a no-log policy, open source code, ad blocking and much more; now 79% off. Name * Email * Commenting as . Not you? Save information for future comments
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