How to test a work VPN after a network switch

Your work VPN was connected, then you switched from Wi-Fi to Ethernet, joined a hotspot, or woke your laptop from sleep. Now you are not sure whether the VPN reconnected or whether work traffic is using the right connection.

The VPN Leak Test checks whether your real IP address is exposed through IPv6 or WebRTC while the VPN is on. It is a useful privacy check after a network change, but it does not confirm that your company’s systems are reachable or that your VPN meets your employer’s rules.

Test the VPN after switching networks

1. Before changing networks, connect to your work VPN using the client or method your employer requires. Note the network you are using and whether the VPN client reports that it is connected.
2. Switch to the other network, such as moving from Wi-Fi to a wired Ethernet connection. Wait for the network connection to settle, then check the VPN client. If it says disconnected or reconnecting, wait until it reports connected before continuing.
3. Open the VPN Leak Test in your browser while the work VPN is connected. Review whether the test reports an IPv6 or WebRTC leak. If you use more than one browser for work, repeat the check in the browser you use for work.
4. Try a work resource you are authorized to access, such as your company portal or a shared work application. If appropriate, switch back to the first network and repeat the check so you can compare the results.

Do not disconnect a required work VPN just to see what the test reports. If your employer has instructions for VPN checks, follow those first. Avoid sharing a test result, public IP address, or internal company address in a public forum.

What the result means

The test finds no IPv6 or WebRTC leak

The browser did not expose your real IP through the IPv6 or WebRTC paths the test checks at that moment. This is a useful sign, but it does not prove that every kind of work traffic is going through the VPN. Confirm that the VPN client still says connected and that your work resource opens as expected.

The test reports an IPv6 or WebRTC leak

Your real IP may be visible through that browser network path while the VPN is connected. The VPN may not be handling that type of traffic, or your company may intentionally route some traffic outside the tunnel. Do not assume it is a policy violation or change network settings on a managed computer without checking with IT.

The test cannot give a clear result

A browser privacy setting, extension, or network restriction may affect what the test can observe. Try the approved work browser with extensions temporarily disabled only if your workplace allows it. You can also ask IT whether the company VPN is expected to protect IPv6 and WebRTC traffic.

The VPN test looks fine, but work resources do not open

A leak check and a work connection check are different. The test does not verify your company login, access permissions, internal DNS, or the VPN server’s route to a particular service. Record the network change, the VPN client status, and the error you see, then contact your help desk.

How to fix a VPN that did not reconnect

1. Wait for the new connection to settle. After switching networks, give Wi-Fi or Ethernet a short time to connect before judging the VPN. If the VPN client says it is reconnecting, wait for its status to change rather than repeatedly starting new connections.
2. Check the VPN client. Open the work VPN application and use its approved reconnect option if one is available. Some organizations require a particular sign-in or device check, so follow the company’s steps instead of choosing a different VPN profile.
3. Confirm the computer is online without the VPN client errors. Open a normal website or check the network icon. On Windows 11, review Settings › Network & internet. On macOS, open System Settings › Network. If the computer itself has no connection, fix that first.
4. Check the system VPN entry if your workplace uses it. On Windows 11, open Settings › Network & internet › VPN. On macOS, open System Settings › Network › VPN. Confirm you are using the work profile your organization provided. Many companies use a separate VPN app, so these system pages may not show its connection.
5. Reconnect to the work network. If your company permits it, disconnect and reconnect through the approved VPN client. If the connection fails again, note the time, network type, VPN status, and any error message for IT. Do not delete or recreate a managed profile unless support tells you to.
6. Restart only after simpler checks fail. Save your work, restart the computer, reconnect to the network, and then start the work VPN. If the problem happens only on one network, tell IT which network it is and whether the VPN works on another approved connection.

Why a work VPN can show a different IP

Some organizations use split tunneling. That means selected work traffic goes through the VPN while other internet traffic uses your regular connection. In that setup, a browser test may see your ordinary public IP even though approved work services are using the company tunnel. The exact result depends on your employer’s configuration.

A network switch can also cause a brief interruption while the computer gets a new connection and the VPN negotiates again. A leak test checks for specific IP exposure paths in the browser, not the whole route taken by every application. If the result conflicts with the VPN client or your company’s instructions, ask IT to interpret it before changing IPv6, browser, or VPN settings.