You install a Windows or macOS update, restart your computer, and get back to work.
Then you open your VPN.
It won’t connect.
Maybe it stays stuck on “Connecting,” disconnects immediately, or your VPN connects but your internet stops working.
If your VPN was working normally before the update, the timing can be a strong clue. Operating system updates can change network settings, permissions, drivers, or security components that VPN applications rely on.
The good news? You may not need to roll back the update or reinstall everything to get your VPN working again.
Here’s what you can try.
Why Does a VPN Stop Working After an OS Update?
Operating system updates can affect the components VPN applications use to establish a secure connection. This may include network drivers, firewall permissions, network configurations, or compatibility between the operating system and the VPN app.
Sometimes, the problem is temporary. Other times, your VPN application may need an update to work properly with the newer operating system.
How to Fix a VPN That Stops Working After an OS Update
1. Restart Your Computer
Start with the simplest fix.
An operating system update can leave network services or drivers waiting for a restart. Completely restart your computer, open your VPN again, and try connecting.
If the VPN works afterward, there may have simply been a temporary post update network issue.
2. Update Your VPN App
Your operating system may have been updated before your VPN application.
VPN providers regularly release updates to maintain compatibility with newer Windows and macOS versions. An older VPN application may not work correctly after a major OS update.
Check whether you’re running the latest version of your VPN app. If an update is available, install it and try connecting again.
3. Try a Different VPN Protocol
If your VPN app opens but won’t connect, try changing the VPN protocol.
WireGuard is a good option to try because it’s designed for fast and efficient connections. If you’re already using WireGuard and the connection isn’t working, try another protocol available in your VPN application.
A protocol change can help determine whether the problem is related to the VPN connection method.
4. Try Another VPN Server
Don’t assume the update has broken every VPN connection.
Connect to another server in the same country, or choose a different city if city level locations are available.
If another location works, the issue may be specific to the original VPN connection rather than your operating system.
5. Check Your Firewall and Security Settings
Windows and macOS updates can sometimes affect security permissions or firewall configurations.
Check whether your VPN application is still allowed to communicate through your firewall or security software.
If you recently installed or updated antivirus software as well, check its network protection settings. Make sure your VPN hasn’t been blocked.
Avoid leaving your firewall or antivirus disabled. If a security setting appears to be causing the problem, look for an appropriate exception instead.
6. Reinstall the VPN App
If the VPN still doesn’t work, a clean reinstall can help.
Uninstall the VPN application, restart your computer, and install the latest version again from your VPN provider’s official website.
This can replace outdated components or configurations that may no longer work correctly with the updated operating system.
Before uninstalling, check whether you need to save any custom VPN settings. Once you’ve reinstalled the app, sign in if necessary and try connecting again.
Windows vs. macOS: Does the Fix Differ?
The underlying reason can be similar, but the exact troubleshooting steps depend on your operating system.
On Windows: VPN problems after an update can involve network adapters, drivers, firewall settings, or system networking components. Check whether your network adapter is working correctly and whether your VPN app is allowed through the firewall.
On macOS: VPN permissions, network configurations, and system privacy or security settings can affect how the VPN operates. Make sure your VPN app supports your current macOS version and review any relevant permissions.
For both operating systems, start with the simpler fixes before changing advanced network settings.
Frequently Asked Questions
A Windows update may affect network drivers, firewall permissions, or compatibility with your VPN application. Restart your computer, update the VPN app, and check your firewall settings first.
Your VPN application may need an update to support the latest macOS version. Network configurations, permissions, or security settings may also be involved.
Not as a first step. Try restarting your computer, updating your VPN application, and checking your security settings before considering a system rollback.
It can help in some cases. If one protocol isn’t connecting, trying another supported option may help identify whether the issue is related to the connection method.
Try another VPN server and check whether your internet works when disconnected from the VPN. If the issue continues, update or reinstall the VPN application and review any firewall or network settings that may be interfering with the connection.
Final Thoughts
A Windows or macOS update doesn’t necessarily mean your VPN has stopped working permanently. The issue may come down to application compatibility, network settings, firewall permissions, or a specific VPN connection.
Start by restarting your computer and updating your VPN application. If that doesn’t help, try another protocol or server, check your security settings, and consider reinstalling the app.
With a few checks, you may be able to get your VPN working again without rolling back your operating system update.
