Why WiFi Disconnects After Sleep on Windows 11 and How to Fix It

If your Windows 11 laptop’s Wi-Fi disconnects every time it wakes from sleep, it’s usually because Windows turns off the Wi-Fi adapter to save power or because the network drivers are outdated or corrupted. Fixing this involves changing power management settings for your network adapter, updating or reinstalling drivers, or resetting your network settings. These straightforward steps can help keep your Wi-Fi connected after sleep without needing advanced technical knowledge.

Why does my Wi-Fi disconnect after sleep on Windows 11?

When your laptop goes to sleep, Windows may turn off some hardware to save battery, including your Wi-Fi adapter. If your network adapter’s power management settings allow Windows to disable it, the Wi-Fi might not reconnect automatically when the laptop wakes up. Outdated or faulty drivers can also prevent the adapter from reconnecting properly. Changes in Windows updates or settings related to sleep mode can affect how network devices behave, causing disconnections. Usually, this is a software setting issue, not a hardware failure.

Before you start

This guide applies to Windows 11 laptops experiencing Wi-Fi disconnections after waking from sleep. You’ll need administrator rights to change device settings and update drivers. Restarting your computer is necessary for some steps. Before making changes, ensure your laptop is plugged in or has enough battery power, and note that resetting network settings will remove saved Wi-Fi passwords, so have them handy.

How to check if your network adapter's power management is causing the issue

1. Press Windows key + X and select Device Manager.

2. Expand the "Network adapters" section.

3. Find your Wi-Fi adapter (it usually includes "Wireless" or "Wi-Fi" in the name).

4. Right-click it and select Properties.

5. Go to the Power Management tab.

6. If the box labeled "Allow the computer to turn off this device to save power" is checked, uncheck it.

7. Click OK to save your changes.

This stops Windows from disabling your Wi-Fi adapter during sleep, which often causes disconnections on wake.

How to update or reinstall your Wi-Fi drivers to fix disconnection

1. Open Device Manager again.

2. Expand "Network adapters" and right-click your Wi-Fi adapter.

3. Click "Update driver."

4. Choose "Search automatically for drivers." Windows will look for updated drivers online.

If Windows finds no updates, visit your laptop or Wi-Fi adapter manufacturer’s website to download and install the latest driver manually.

To reinstall the driver:

1. Right-click your Wi-Fi adapter in Device Manager and select "Uninstall device."

2. Confirm the uninstall.

3. Restart your computer. Windows should automatically reinstall the driver.

If the problem continues, manually install the latest driver from the manufacturer’s site.

How to reset network settings to resolve persistent Wi-Fi drops

1. Open Settings with Windows key + I.

2. Go to Network & internet.

3. Scroll down and click "Advanced network settings."

4. Select "Network reset."

5. Click "Reset now" and confirm.

Your PC will restart and reinstall all network adapters. This resets network configurations that might cause Wi-Fi to disconnect after sleep. Only use this if other steps don’t fix the issue.

How to test if your Wi-Fi stays connected after sleep

1. Connect to your Wi-Fi network.

2. Put your laptop to sleep by closing the lid or choosing Sleep from the Start menu.

3. Wait a minute or two, then wake your laptop.

4. Check if the Wi-Fi reconnects automatically and stays connected.

5. To be sure, try browsing the web or streaming a video.

If your Wi-Fi disconnects again, repeat the troubleshooting steps or seek further help.

Tips to prevent Wi-Fi disconnections after sleep on Windows 11

• Disable fast startup: Open Control Panel > Power Options > Choose what the power buttons do > Change settings that are currently unavailable > Uncheck "Turn on fast startup." Fast startup can interfere with devices waking properly.

• Set wireless adapter power to maximum performance: Go to Power & sleep settings > Additional power settings > Change plan settings > Change advanced power settings > Wireless Adapter Settings > Power Saving Mode > set to "Maximum Performance."

• Keep Windows updated to receive fixes and improvements.

• Temporarily disable third-party VPN or security software to see if they cause connection problems.

These steps reduce the chance of Wi-Fi disconnecting after sleep.

Conclusion

If your Wi-Fi still disconnects after sleep despite these steps, consider checking for hardware issues or consulting a technician. Most of the time, adjusting power management, updating drivers, and resetting network settings will fix the problem. Keeping your system updated and power settings properly configured helps prevent future disconnections.