Troubleshooting and general information

WireGuard® is a new VPN protocol used to secure the connection between your device and a VPN server.  Learn more about how VPNs work WireGuard uses state-of-the-art cryptography to keep your connection secure and, at just a few thousand lines of code, it is extremely lightweight. This makes it faster […]

We would like  to remind you that you should check the VPN Streaming Guide to get step-by-step instructions on setting up your VPN connection and securely watching your favorite content on various streaming platforms. We also want to remind you that our streaming feature is only available on VPN Plus, […]

If the base filtering engine (BFE) is not running on your Windows device, the Proton VPN app will show the following error messages: The most likely reason the BFE is not running is that a virus disabled it to perform malicious actions on your device. For Proton VPN to work […]

Proton VPN is a service provided by Proton AG, an employee-owned company based in Switzerland. Proton was founded in 2014 by a team of scientists who met at CERN (the European Center for Nuclear Research) and created Proton Mail, the world’s largest encrypted email service. Proton employees hold the vast […]

With each new release of a Proton VPN app, there are improvements, bug fixes, and new features that improve the user experience. It is therefore essential to always update your Proton VPN apps to the latest version. Additionally, if you need assistance with any of our apps, it’s very important […]

Occasionally, you may find that the Proton VPN server you always connect to has been removed.  At Proton VPN, we continuously upgrade our servers to ensure the best performance and stability. These investments are what make Proton VPN consistently the fastest VPN service. This means that we will periodically retire […]

Encountering Authentication Failure errors when connecting to Proton VPN while using 3rd party VPN clients? Read on to find a list of solutions to this problem. There are a number of ways to connect to Proton VPN other than using our native apps . It is also possible to connect using third […]

In this article, we discuss the factors that impact the speed of VPN connections and how you can increase the speed of your connection when using one of our VPN servers. We also cover the differences in speed between the Proton VPN plans. Update July 2021: Our unique VPN Accelerator […]

WireGuard® is a new VPN protocol that is lightweight, fast, and secure. By default, there are some potential privacy issues with WireGuard, but Proton VPN’s implementation of the protocol uses unique technical solutions to safeguard your privacy. Which implementation of WireGuard does Proton VPN use? Proton VPN uses a specially […]

If you cannot connect to our VPN servers using our Windows app, you will see this troubleshooting message.  As this message suggests, there are a number of possible reasons for the problem. Your connection is blocked by your ISP or government If you live in a restrictive country then your […]