How to check a VPN on a hotspot and home mesh
Check whether your VPN stays active when a laptop switches between a phone hotspot and home mesh Wi-Fi, and spot IPv6 or WebRTC leaks.
Your VPN looks connected, but your laptop has just switched from a phone hotspot to home mesh Wi-Fi. A brief reconnect, a different network route, or a browser setting can change what websites see. Check the VPN on both connections instead of assuming the status icon tells the whole story.
The VPN Leak Test checks whether your real IP address is exposed through IPv6 or WebRTC while the VPN is on. Run it on each network, then use the results to decide what to check next.
Check the VPN on both networks
- Connect the laptop to your phone's hotspot. Turn on the VPN on the laptop, and wait until its app says the connection is active. If the VPN is only running on your phone, do not assume it also protects devices connected to the hotspot.
- Open the VPN Leak Test in the browser you use for work or browsing. Review the result and note privately whether it reports an IPv6 or WebRTC leak. Do not post screenshots that show your IP address publicly.
- Disconnect from the hotspot and connect the laptop to your home mesh Wi-Fi. Give the VPN a moment to reconnect, then confirm its app says it is active. Run the test again in the same browser.
- If you use multiple mesh nodes, move to another room and let the laptop connect to the mesh there. Wait for the VPN to recover before testing again. A mesh handoff can briefly interrupt the connection even if Wi-Fi stays connected.
For a fair comparison, keep the VPN app, browser, browser profile, and test page the same. If a VPN browser extension protects only one browser, testing another browser will not check the same VPN route.
What the result means
No IPv6 or WebRTC leak is reported on either network
The test did not detect your real IP address through those two paths while the VPN was active. That is a useful check, not proof that every app, website, or type of network traffic is covered. Keep the VPN app's connection protection enabled, especially if you move between networks often.
A leak appears on the hotspot but not on mesh Wi-Fi
The VPN may be reconnecting differently on the hotspot, or the hotspot connection may provide IPv6 while the mesh network does not. Reconnect the VPN while the laptop is still on the hotspot and test again. If the same leak returns, check the VPN app's leak protection settings or ask its support team whether that connection type is supported.
A leak appears on mesh Wi-Fi but not on the hotspot
Check whether the mesh router, its internet connection, or a VPN setting is exposing a route outside the tunnel. Repeat the test near the main mesh router, then in the room where you noticed the problem. If the result changes by room, the mesh handoff or VPN reconnection may be involved.
The visible IP address changes, but no leak is reported
A change by itself does not prove a leak. VPN providers can use different exit addresses, and your connection may use different routes on cellular and home internet. Focus on whether the test identifies your real address through IPv6 or WebRTC, rather than expecting the same VPN address on both networks.
The VPN disconnects or the page cannot complete its check
This points to a connection or browser problem, not necessarily an IP leak. Check whether the VPN app reconnects after the network change, then reload the page and test again. If the VPN keeps dropping, investigate the connection before relying on it for private traffic.
How to fix a leak or a failed reconnect
- Reconnect the VPN after switching networks. Disconnect and reconnect from the VPN app after moving between the hotspot and mesh Wi-Fi. On Windows 11, you can also review the connection under Settings › Network & internet › VPN. On macOS, check System Settings › VPN.
- Turn on automatic connection and a kill switch. If the VPN app offers these options, set it to connect on untrusted networks and block internet access if the tunnel drops. The names and locations vary by VPN app. A kill switch can prevent traffic from going out normally during a reconnect, but check that it does not block access you need.
- Check whether the browser is covered. If you use a browser extension, confirm it is connected in the browser where you run the test. For a full-device VPN, check whether split tunneling excludes that browser. On Windows 11, review Settings › Network & internet › VPN and the VPN app's own settings. On macOS, review System Settings › VPN and the VPN app's settings.
- Check the hotspot connection. On an iPhone, review Settings › Personal Hotspot. On Android, look under Settings › Network & internet › Hotspot & tethering, though names vary by phone. These settings control hotspot sharing, not whether the laptop's VPN is working. Test the VPN on the laptop itself.
- Update and restart the VPN app. Install any available app update, restart it, and test again on each network. If only one network still shows a leak, contact the VPN provider with the network type and the leak category, but avoid sending an unredacted IP address unless support specifically needs it through a private channel.
Why a hotspot and mesh can behave differently
A phone hotspot and a home mesh system are different routes to the internet. The hotspot sends laptop traffic through the phone's cellular connection, while the mesh sends it through the home router and internet provider. When the laptop changes route, the VPN may need to establish a new tunnel. A mesh system can also hand the laptop between access points while keeping the same Wi-Fi name, so the laptop may appear connected even as the VPN briefly reconnects.
A VPN running on the phone does not automatically mean that tethered laptop traffic goes through that VPN. The behavior depends on the phone and VPN configuration. To check the laptop's traffic, run the test from the laptop with its own VPN connection active.
The test runs in your browser and checks for IPv6 and WebRTC exposure. It does not prove that every app or connection is covered by your VPN.
