Troubleshooting and general information

NetShield is a DNS filtering feature that blocks ads, malware, and website trackers. Some antivirus programs for Windows offer features that are incompatible with NetShield, which can result in conflicts that prevent NetShield from working properly. This article aims to document any such issues as they come to our attention […]

ProtonVPN implements a security system to protect our users’ accounts. If we detect potentially suspicious behavior that may indicate someone is trying to gain unauthorized access to your account then we may temporarily lock your account in order to protect it. While your account is locked you will not be […]

We want 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 ProtonVPN Plus and […]

ProtonVPN is a service provided by Proton Technologies 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 ProtonMail, the world’s largest encrypted email service. Proton employees hold the vast majority […]

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

You can access ProtonVPN using two sets of credentials, your ProtonVPN login credentials, and OpenVPN / IKEv2 credentials. This article explains the difference between Proton credentials and OpenVPN / IKEv2 credentials, what they are used for, and where you can find them. Proton credentials Your Proton credentials are the username […]

OpenVPN is a VPN protocol. A VPN protocol, or a “tunneling protocol,” is the set of instructions your device uses to negotiate the secure encrypted connection that forms the network between your computer and another.  OpenVPN uses SSL/TLS to handle its key exchange, has no known vulnerabilities, supports Perfect Forward […]

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 ProtonVPN plans. Update July 2021: Our unique VPN Accelerator technology […]

Internet speed or how fast data transfers in a network is calculated using different metrics: latency, bandwidth, and throughput.  This article aims to explain these metrics and how the TCP protocol — the way most data is transmitted over the Internet nowadays — impacts them.  Sending off your data packets […]

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