How to test VPN speed on Wi-Fi 6

Your internet seems slower when the VPN is on, but it is hard to tell whether the VPN, your Wi-Fi 6 access point, or a busy network is responsible. A single speed test cannot separate those causes, especially if your connection changes while you are testing.

Compare the same device and Wi-Fi connection with the VPN off and on. The Speed Test measures download speed, upload speed, ping, and jitter in your browser. Repeat the comparison so you can spot a consistent difference rather than a temporary dip.

Compare speed with the VPN off and on

1. Connect your computer or phone to the Wi-Fi 6 access point you want to check. Open the Speed Test in the browser you plan to use for the comparison.
2. Disconnect the VPN for the first test. Run the test and note download speed, upload speed, ping, and jitter. Keep the device in the same place and leave other network conditions unchanged.
3. Connect to your usual VPN server and run the test again. Make sure the VPN is active and that your browser is not excluded by split tunneling, a setting that sends selected apps outside the VPN.
4. Repeat the tests in an off, on, off order, then compare the readings. If the VPN-on result is consistently lower, note how large the difference is and whether ping or jitter also changes.
5. If possible, test near the access point and then at the usual work location. Keep the VPN server and device the same for both locations.

Run the tests when downloads, cloud backups, and video streams are not using much bandwidth. A speed test exchanges test data with our server to measure the connection, so the result describes the route from your device to that server, not every site or service you use.

What the result means

Speed is similar with the VPN on and off

The VPN is probably not adding a large throughput penalty in this test. If a particular website or app still feels slow, its route, server load, or connection behavior may be different from the test server. A browser may also bypass the VPN if split tunneling excludes it, so verify the VPN app's settings before treating the comparison as a test of tunneled traffic.

Download and upload both drop with the VPN

A repeated drop points to a difference introduced by the VPN route or the VPN connection itself. Encryption takes processing, and a VPN server farther away can add extra network hops. The size of the change depends on the device, VPN service, selected server, and protocol, so there is no single percentage that counts as normal.

Ping rises, but download speed stays close

The VPN is adding delay even though it can still move data quickly. A distant server or a longer route can increase ping. This matters more for calls, remote desktops, and fast online games than for downloading a large file.

Results vary a lot between repeated tests

Changing Wi-Fi conditions, other devices using the network, VPN server load, or the test route may be affecting the readings. Compare several runs rather than choosing the fastest or slowest one. A speed test is a snapshot, not a guarantee of constant performance.

Speed is poor with the VPN off too

The VPN is unlikely to be the only cause. Check the Wi-Fi connection, access point location, internet service, and the device's own limits before changing VPN settings. A Wi-Fi 6 access point cannot make a device faster than its network hardware and the internet connection allow.

How to reduce the slowdown

1. Choose a closer VPN server. Try a server nearer to your location, then repeat the on and off comparison. A shorter route may reduce ping and sometimes improve throughput.
2. Check the VPN protocol. If your VPN app offers more than one protocol, try another option and compare results under the same conditions. Protocol availability and names vary by provider, so use the choices shown in your app.
3. Check that your device is using the Wi-Fi 6 access point. On Windows 11, open Settings › Network & internet › Wi-Fi and check the connected network's properties. On macOS, open System Settings › Wi-Fi. On Android, check Settings › Network & internet › Internet; on iPhone, check Settings › Wi-Fi. Menu names can vary by device. If the device is connected to a different access point or a weak signal, move closer and retest.
4. Pause other heavy network use. Stop large downloads, cloud sync, and streaming on your device and, if practical, other devices. Repeat the VPN-on and VPN-off tests close together so changing network activity is less likely to skew the comparison.
5. Check whether the VPN app limits traffic. Look for a speed limit, data-saving option, or split-tunneling rule in the VPN app. On Windows 11 and macOS, also check that the VPN connection has not been paused or restricted by the app. Do not turn off security features unless you understand what they do.
6. Restart the access point and device. If speed is poor with the VPN off as well, restart the router or access point using its normal controls, then reconnect and test again. On Windows 11, you can reconnect through Settings › Network & internet › Wi-Fi; on macOS use System Settings › Wi-Fi.

Why Wi-Fi 6 does not remove VPN overhead

Wi-Fi 6 describes the wireless link between a compatible device and an access point. A VPN changes how internet traffic travels after it leaves that local link. The Wi-Fi 6 connection may be fast while the VPN adds delay or limits throughput because of the device's processing, the VPN server, or the longer route.

Use the same device for the comparison. A phone and a laptop may support different Wi-Fi features, have different antennas, or handle VPN encryption at different speeds. Also keep the access point and its location the same. Otherwise, the comparison mixes VPN overhead with changes in the wireless connection.

Speed Test sends test data to a server to measure the connection. Do not use a speed result alone to decide whether a VPN protects all apps on your device. Check the VPN app's connection status and routing settings too.