How to reassess Wi-Fi response time after a Windows update

After a Windows update, your Wi-Fi may still show as connected while pages take longer to open, calls stutter, or games feel delayed. A single speed test may not explain the change: download speed and response time measure different things.

Compare the connection under similar conditions, then check whether the delay appears to be on Wi-Fi, elsewhere on your network, or beyond it. The Wi-Fi Signal tool measures response time, jitter, and lost requests. It does not read the Wi-Fi signal strength in dBm.

Check Wi-Fi response time after the update

1. Start with Test Everything if you want to check the PC more broadly. Run its tests and note any network result, but use the focused network checks below to investigate response time.
2. Open Wi-Fi Signal on the Windows PC. Keep it on the same Wi-Fi network and in the same place you normally use the computer. Let the readings settle, and note the response time, jitter, and any lost requests.
3. For a longer check, open Connection Stability and let it run for a few minutes. This can reveal brief interruptions that a short check may miss.
4. Repeat the checks at a different time, and compare with an earlier result if you have one. Keep the room, router location, Wi-Fi band, and other network activity as similar as possible.
5. If you also want to check download and upload rates, use Speed Test. Treat speed and response time as separate results, and remember that a speed test exchanges test data with our server.

A useful comparison is repeatable, not just a single low or high reading. A nearby device running a call, a cloud backup, a VPN, or a different test route can change the result.

What the results mean

Response time is similar to before the update

The update has not produced an obvious change in these checks. If one app still feels slow, check that app and its settings, or test the connection while that app is actually in use. A browser test cannot guarantee how every service will respond.

Response time is higher, but there are few or no lost requests

The connection is responding more slowly, but the check did not find frequent failures. Other devices using the network, a VPN, or a busy connection can add delay. Try the same check when downloads and backups are idle, then compare with a wired connection if available.

Jitter or lost requests appear repeatedly

Jitter means response time varies from one check to the next. Lost requests mean some checks did not get a reply in time. Repeated losses can interrupt calls and games even when a speed test shows a high download rate. Use Connection Stability to see whether the problem continues over several minutes.

The result is worse on Wi-Fi than on Ethernet

This points toward the wireless link, the adapter, or the router’s Wi-Fi connection, rather than proving that the internet service itself is at fault. Test near the router, then at your usual desk. A browser cannot read signal strength in dBm, so use the change in response time, jitter, and lost requests as evidence of what the connection is doing.

Wi-Fi and Ethernet both show a change

The cause may be the router, another device using the internet, your internet provider, or a change in the route to the test server. Check another device and repeat at a quieter time before changing the Wi-Fi adapter driver.

How to fix it

1. Wait for the update and restart to finish. Windows may need another restart to complete setup. After restarting, wait a few minutes for the connection to settle, then test again.
2. Pause other network activity. Stop large downloads, cloud backups, and streaming on your devices for a short comparison. If you use a VPN, disconnect it temporarily only if your work or network rules allow it, then compare results with it off and on.
3. Reconnect to Wi-Fi. On Windows 11, open Settings › Network & internet › Wi-Fi › Manage known networks, select your network, choose Forget, then connect again and enter the password. On macOS, use System Settings › Wi-Fi, open the details for the network, and choose Forget This Network before reconnecting. This can help if the saved network profile is part of the problem.
4. Compare near the router and on another device. If the laptop improves near the router but another device does not show the same change, investigate the laptop’s adapter or driver. If several devices have the same problem, restart the router and check again.
5. Check the Wi-Fi adapter driver. In Windows, right-click Start, open Device Manager, expand Network adapters, and open your wireless adapter’s properties. Under Driver, use Roll Back Driver only if it is available and the problem began with the recent driver change. Otherwise, check the computer maker’s support instructions before installing a driver.
6. Use Network reset only as a later step. In Windows 11, go to Settings › Network & internet › Advanced network settings › Network reset. This removes and reinstalls network adapters and may require you to reconnect to saved networks or reconfigure network software. Test again after the restart.

Tell a Wi-Fi problem from an internet problem

If Ethernet is steady while Wi-Fi has repeated delays or lost requests, focus on the wireless connection, the adapter, or the router’s Wi-Fi settings. If both connections show the same pattern, check whether other devices are downloading or backing up, then repeat the test later. Consistent problems across devices and connection types are a reason to contact your internet provider or router support with the times and results you recorded.

Keep your comparisons on the same computer and network when possible. A result from another device or a different time can help narrow the cause, but it is not a like-for-like baseline.