Help article

How to Use Kill Switch with SyncVPN

SyncVPN Kill Switch blocks internet access when the VPN connection is interrupted, helping prevent traffic from continuing through your regular internet connection.

Updated October 1, 2026

Kill Switch is an important VPN security feature that helps prevent your internet traffic from being sent through your regular internet connection if your VPN connection suddenly drops.

When Kill Switch is enabled, SyncVPN can block your internet connection if the VPN connection is interrupted. This helps prevent your traffic from continuing outside the VPN connection.

What Is a VPN Kill Switch?

A VPN Kill Switch is a security feature that monitors your VPN connection.

If your VPN connection suddenly disconnects, the Kill Switch blocks internet access until the VPN connection is restored.

For example:

  1. You connect to SyncVPN.

  2. Your internet traffic is routed through the VPN connection.

  3. The VPN connection is unexpectedly interrupted.

  4. Kill Switch blocks internet access.

  5. Once the VPN connection is restored, internet access becomes available again.

This helps prevent your device from automatically switching back to your regular internet connection while the VPN is disconnected.

Why Should You Use Kill Switch?

A VPN connection can occasionally be interrupted because of network changes, unstable internet connections, Wi-Fi switching, or other connection problems.

Without a Kill Switch, your device may continue using its normal internet connection after the VPN disconnects.

Kill Switch can help you:

  • Prevent traffic from continuing outside the VPN connection.

  • Reduce the risk of exposing your real IP address after a VPN disconnection.

  • Maintain an additional layer of privacy when using public Wi-Fi.

  • Prevent applications from continuing to access the internet while the VPN connection is unavailable.

  • Keep your internet traffic restricted to the VPN connection when continuous VPN protection is important.

How to Enable Kill Switch in SyncVPN

You can enable Kill Switch from the SyncVPN application settings.

Step 1: Open SyncVPN

Launch the SyncVPN application on your device.

Step 2: Open Settings

Open the Settings section of the SyncVPN application.

Step 3: Find Kill Switch

Find the Kill Switch option in the settings.

Step 4: Turn On Kill Switch

Turn on the Kill Switch option.

Once enabled, SyncVPN will monitor your VPN connection and block internet access if the VPN connection is interrupted.

Step 5: Connect to SyncVPN

Connect to your preferred SyncVPN location and wait until the VPN connection is established.

Your Kill Switch is now active.

What Happens After You Enable Kill Switch?

After you enable Kill Switch, SyncVPN monitors the VPN connection while you are connected.

If the VPN connection suddenly drops, your internet connection may be blocked.

For example:

VPN connected → Internet works normally

VPN disconnects → Internet access is blocked

VPN reconnects → Internet access is restored

This behavior is intentional. Kill Switch is designed to prevent your device from continuing to use the internet outside the VPN connection.

What Should You Do If Your Internet Stops Working?

If your internet stops working while using SyncVPN, first check whether the VPN connection is active.

Step 1: Open SyncVPN

Open the SyncVPN application and check the connection status.

Step 2: Reconnect to the VPN

If the VPN is disconnected, connect to a SyncVPN location again.

Step 3: Wait for the Connection

Wait until the VPN connection is fully established.

Step 4: Test Your Internet

Open a website or application and check whether your internet connection has been restored.

If the VPN cannot connect, the Kill Switch may continue blocking internet access until a VPN connection is established.

Common Kill Switch Problems

Internet access is blocked

If your internet stops working after enabling Kill Switch, check that SyncVPN is connected.

Reconnect to the VPN and try accessing the internet again.

SyncVPN cannot connect

If SyncVPN cannot establish a VPN connection, try:

  1. Checking your regular internet connection.

  2. Disconnecting and reconnecting SyncVPN.

  3. Trying another SyncVPN location.

  4. Restarting the SyncVPN application.

  5. Restarting your device.

  6. Updating SyncVPN to the latest available version.

Some applications cannot access the internet

When Kill Switch blocks internet access, applications that require an internet connection may also stop working.

Reconnect SyncVPN and check whether the applications work normally after the VPN connection is restored.

Internet works after the VPN disconnects

If you expect Kill Switch to block your internet connection after a VPN disconnection, make sure the Kill Switch option is enabled in SyncVPN settings.

Kill Switch and Public Wi-Fi

Kill Switch can be particularly useful when connecting to public Wi-Fi networks such as:

  • Cafés

  • Hotels

  • Airports

  • Universities

  • Offices

  • Other public or shared networks

If the VPN connection is interrupted while Kill Switch is active, internet access can be blocked until SyncVPN reconnects.

This helps prevent your device from automatically continuing to use the network without the VPN connection.

Kill Switch Checklist

Before using Kill Switch, make sure:

  • SyncVPN is installed on your device.

  • Your internet connection is active.

  • SyncVPN is connected to a VPN location.

  • Kill Switch is enabled in Settings.

  • You can reconnect to SyncVPN if the VPN connection drops.

  • SyncVPN is updated to the latest available version.

Frequently Asked Questions

What does Kill Switch do?

Kill Switch blocks internet access if the VPN connection is interrupted. This helps prevent your device from continuing to send traffic through the regular internet connection.

Should I enable Kill Switch?

Kill Switch can be useful if you want your internet traffic to stop whenever the VPN connection is unavailable.

What happens when SyncVPN disconnects with Kill Switch enabled?

Internet access may be blocked until SyncVPN reconnects to a VPN location.

Does Kill Switch prevent VPN disconnections?

No. Kill Switch does not prevent the VPN connection from disconnecting. It controls internet access when the VPN connection is lost.

Why can't I access the internet after enabling Kill Switch?

If SyncVPN is disconnected, Kill Switch may be blocking internet access as intended. Reconnect to SyncVPN and try again.

Can I use Kill Switch on public Wi-Fi?

Yes. Kill Switch can provide an additional layer of protection when using public or shared Wi-Fi networks.

Still Need Help?

If you cannot connect to SyncVPN after enabling Kill Switch, check your internet connection and try another SyncVPN location.

If the problem continues, contact SyncVPN Support and provide your device type, operating system, SyncVPN version, connection status, and any error message you see.

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