Kill Switch is your safety net, especially on unstable networks. If your VPN connection ever drops, it blocks your internet automatically so your data stays protected. This guide covers what it does, how to enable it, and how to fix common issues.
Note: Kill Switch is gradually being rolled out and may not be available to all users.
Connection drops can happen when you’re switching between networks or restarting your device. This is common on public Wi-Fi, while traveling, or in areas with unstable networks. Even a brief drop can send traffic outside the encrypted tunnel, exposing your real IP address or DNS requests to your ISP, the network you're on, or third parties.
VPN Super's Kill Switch blocks all internet traffic the moment your VPN connection is interrupted, so your activity stays hidden until VPN protection is restored. Here's how it works:
VPN Super’s Kill Switch is available on the iOS and Android apps, but it's gradually being rolled out and may not be available to all users. It’s turned off by default, so you'll need to switch it on.
On your iOS or Android device
Note: Kill Switch on iOS only supports the IKEv2 or OpenVPN protocol. If you’re using an unsupported protocol, you’ll see a prompt asking you to switch protocols.
On the VPN Super app for Android, Kill Switch works with all available protocols: Auto, V2Ray, Super, IKEv2, and OpenVPN.
On the VPN Super app for iOS, Kill Switch works with the IKEv2 and OpenVPN protocols.
Most of the time, nothing changes—you browse as usual. Kill Switch only activates when your VPN connection drops, blocking your internet connection until the VPN reconnects. Here’s what to expect:
Still can’t connect? Try a different server or protocol, and check that the same network works with the VPN turned off to rule out a wider connection issue. Contact Support if you still need help.
Kill Switch is designed for privacy-conscious users who don’t want to deal with any gaps in VPN protection. When active, it blocks all internet access the moment your VPN drops—even briefly. Since drops happen more than you'd expect (when switching networks or servers reconnect), leaving it on can cause short but total outages. Apps like iMessage, FaceTime, and Find My won’t work momentarily while the VPN is down. Disabling it by default gives you control: you can enable it when you specifically need that level of protection, without the risk of unexpected interruptions on networks where VPN connections are less stable.
Some public networks make you sign in through a browser page first (a captive portal). That page needs a moment of unprotected access to load, which Kill Switch blocks. To get online:
No. Disconnecting yourself is intentional, so Kill Switch doesn't block your traffic. It only steps in when the connection drops on its own.
If the VPN drops and Kill Switch blocks your internet, anything that needs a connection is paused too, including iMessage, FaceTime, and Find My. They resume once the VPN reconnects.
Yes. By blocking all traffic during a drop, Kill Switch prevents data—including DNS requests—from leaving your device unprotected in that moment.
No noticeable impact. It works with your existing connection rather than running heavy background activity.
Yes. It works at the system level, so it stays active even when your screen is off.
No. It doesn't sit in the path of your traffic or add overhead—it only acts when the VPN connection drops.
For now, it's only available on the VPN Super apps for iOS and Android.
No. Signing out disconnects the VPN, so there's no active connection for Kill Switch to protect. Sign back in and connect to restore protection.
If you have issues with Kill Switch, submit a request and we'll help you sort it out.
