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Why and how to fix iPhone automatically disconnects from WiFi when the screen is locked?
Check the discussion in the Apple community, you will find that many iPhone users have encountered WiFi automatically disconnects when the phone's screen is locked, no matter which version of the system is. It is a highly controversial feature of the iPhone, which caused inconvenience to users who need to use WiFi to answer calls or listen to music when the screen is locked. Have you ever encountered this problem? The following content will answer this question and teach you how to solve it.
Total Time: 5 minutes
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Why does the WiFi automatically disconnect when the iPhone locks the screen?
The design of this function is probably based on the following two reasons.
- Save power. We all know that connecting a mobile phone to WiFi consumes more power than not connecting to WiFi. When the screen is locked, the iOS system thinks that the user does not need to use WiFi. In order to maintain a good power-saving effect, it will automatically turn off WiFi after the screen is locked.
- Switch to the best network signal. When the WiFi signal is poor, the iOS system will automatically turn off WiFi after locking the screen and switch to a relatively better 4G/5G network.
How to fix iPhone automatically disconnects from WiFi when the screen is locked?
You can troubleshoot according to the following methods to solve the problem.
2.Force restart your iPhone. Force restarting your device can help fix many glitches on your iPhone, including WiFi disconnects automatically after locking the screen.
3.Disconnect WiFi and reconnect again.
Enter Settings → Click WiFi → Click the "i" icon on the right side of the WiFi network → Click Forget This Network → Click Forget after a dialog box appears → Return to WiFi connection list → Re-click the WiFi network you want to connect → Enter correct password to connect.
4.Enable Auto-Join. If you have turned off auto-join WiFi, your iPhone may also automatically disconnect from WiFi when the screen is locked. Therefore, it is recommended that you enable it.
Go to Settings → Click WiFi → Click the "i" icon on the right side of the WiFi network → Enable Auto-Join.
5.Turn off Wi-Fi Assistant. If the iPhone has turned on Wi-Fi Assistant, when the WiFi signal is poor, the iPhone will automatically connect to the cellular data to bring you the maximum network speed. However, this may cause the iPhone to automatically disconnect from WiFi after the screen is locked. To turn off Wi-Fi Assistant, please follow next steps.
Go to Settings → Click Cellular → Scroll to the bottom to find Wi-Fi Assistant and turn it off.
6.Restart the WiFi router. Sometimes, the iPhone will automatically disconnect from the WiFi after the screen is locked if the WiFi router has worked for a long time.
In this case, you can power off the WiFi router by pressing the on/off button or simply unplug the power cord. Wait a few seconds and turn it back on.
7.Reset network settings. The problem may also be caused by the network settings of the iPhone. You can try to reset the network settings. Resetting network settings will not erase the data on the iPhone, but the WiFi passwords stored on the device will be deleted.
Enter Settings → Click General → Click Reset → Click Reset Network Settings → Click Reset after a dialog box appears → Wait for the system to recover and restart, then try to connect to the WiFi network to check if the WiFi connection is normal.
8.Upgrade the iOS version. If your iPhone is running an older iOS version, the device may encounter some software issues that can lead to a WiFi disconnection after the screen is locked. You can solve this problem by upgrading the system version.
Go to Settings → Click General → Click Software Update → If a software update is available, click Download and install it.
How to avoid iPhone automatically disconnecting from WiFi when the screen is locked?
Two tips to solve your troubles:
- Adjust iPhone settings: turn off Wi-Fi Assistant and low power mode.
- Pay attention to hotspot selection: Avoid connecting to WiFi networks in public areas, and try to connect to an encrypted hotspot.