Download speed drops when several devices update

Your internet feels fast until a laptop, phone, and game console start updating at the same time. Then downloads crawl, web pages take longer to open, or a video call starts breaking up. This often happens because the devices share the same internet connection, but a slow update does not always mean your internet plan is the problem.

Compare your connection before and during the updates with TooLab's Speed Test. A few controlled checks can show whether the slowdown is from shared bandwidth, Wi-Fi, or the update service itself.

Compare speed before and during updates

1. Pause updates and large downloads on the devices you can control. Wait about a minute, then open the Speed Test on one device connected the way you normally use it.
2. Run the test and note the download speed, upload speed, ping, and jitter. Keep the device in the same place and on the same connection for the next check.
3. Resume the updates. Wait until at least one device is actively downloading, then run the test again. The test exchanges data with TooLab's server, so it uses some of the same connection capacity as the updates.
4. Pause the updates once more and repeat the test. If speed recovers, the slowdown is likely tied to the downloads or the network load they create.
5. If the problem happens only in one room, repeat the comparison there and near the router. This helps separate a weak Wi-Fi connection from a busy internet connection.

Keep the comparison short. A speed test during active downloads adds traffic, so it can briefly make the updates slower too. You are looking for a clear change between the idle and busy checks, not a perfect number.

What the result means

Speed falls during updates and recovers when they pause

The updates are using a large share of the available connection, or they are making the router queue traffic. Each device may still be downloading normally, but their combined use leaves less capacity for browsing, calls, and other devices. If ping and jitter also rise during the busy check, interactive tasks may feel delayed even when a download is still progressing.

The test stays fast, but one update is slow

Your internet connection can deliver data quickly, but the update server may be busy, or that device may be installing files rather than downloading them. Updates can pause while a device checks, unpacks, or applies files. If other downloads and websites work normally, wait a while before changing router or internet settings.

Speed stays low after updates pause

Another device, cloud backup, or application may still be using the connection. A weak Wi-Fi link, an overloaded router, or an issue with your internet provider can also keep the result low. Check whether the same slowdown appears on a second device and, if possible, over a wired connection.

Only one device gets slower

The cause may be that device's Wi-Fi connection, update software, or background activity rather than the whole household connection. Compare it with another device in the same spot. If the other device remains fast, focus your troubleshooting on the slower one.

How to keep updates from crowding out other tasks

1. Schedule large updates for quiet hours. On Windows 11, use Settings › Windows Update › Pause updates to stop updates temporarily, or set active hours under Settings › Windows Update › Advanced options › Active hours. On macOS, check System Settings › General › Software Update › Automatic Updates. On an iPhone or iPad, use Settings › General › Software Update › Automatic Updates. Android menu names vary, but look under Settings › Software update for automatic update options.
2. Limit Windows update downloads. On Windows 11, open Settings › Windows Update › Advanced options › Delivery Optimization › Advanced options. If the bandwidth controls are available, set a limit for downloads in the background. This can leave more capacity for calls and browsing, though it also makes updates take longer.
3. Pause downloads you do not need right now. Check game launchers, app stores, cloud backup, and file sync on each device. Pausing one large transfer can help more than changing a Wi-Fi setting. Resume it after the call or other time-sensitive task.
4. Improve the Wi-Fi link for the busiest device. Move it closer to the router, avoid placing the router behind furniture, or connect it with Ethernet if that is practical. If the speed test improves near the router, Wi-Fi coverage is part of the problem.
5. Restart the router if the slowdown persists. Restart it once after the updates finish, then compare again. If several devices remain slow on both Wi-Fi and Ethernet, contact your internet provider with the test times and results.

Why an update rate differs from a speed test

A speed test estimates how quickly your device can exchange data with a nearby test server at that moment. An update downloads from the software maker's servers, which may be farther away or busy. The update may also pause between download stages, so its displayed rate can jump or sit at zero without the connection failing.

Check the units before comparing numbers. Internet speed is often shown in megabits per second, written as Mbps, while file transfers may show megabytes per second, written as MB/s. One byte is eight bits, so 80 Mbps is roughly 10 MB/s before network overhead. The figures can look different while describing similar transfer speeds.

If updates repeatedly interrupt calls or browsing, schedule them for a time when fewer people are online and limit background downloads where your devices allow it.