Troubleshooting

We have been contacted by users reporting that their iPhone is telling them that they are using unexpectedly large amounts of data when using their mobile data plan while connected to Proton VPN. We have found that the cause of this unexpected data use is an accounting issue with iOS […]

Some users have reported having Google identify their internet connection as originating in a different country than where our server is located. For example, if you are connected to one of our VPN servers in Malaysia, Google might identify your connection as originating in the United Arab Emirates. This is […]

If you are experiencing issues with Adobe Cloud or Microsoft services such as OneDrive or Office 365 while connected to a Proton VPN server on your Windows device, please follow the steps below to resolve your issue: 1. Open the Network and Internet Settings by right-clicking on the network settings […]

RivaTuner is an overclocking and hardware monitoring system for Windows devices that is used to enhance GPU performance. At this point, it is outdated, with the last stable version being released in 2009. We have found that if you have RivaTuner installed on your device, Proton VPN will not open. […]

With the massively increasing amount of IP addresses required by the global network each year, IPv4 can no longer meet the demand. That’s why IPv6 was introduced — to allow more unique TCP/IP identifiers to be created for each user. While most of the internet uses the IPv4 protocol, there […]

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 […]

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 […]

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 […]