iPhone Disconnects from WiFi When Locked? 6 Ways to Fix

The iPhone user will always encounter a device glitch mode while the system is being updated or something goes wrong with the configuration, such as the iPhone disconnecting from WiFi when locked. This is quite a tough problem for us. As the words of some users, “It only disconnected from WiFi when locked, and it turned back when I unlocked my iPhone.” Disconnecting from WiFi when locked means we miss some important phone calls or e-mail notifications. Even if a cellular network can automatically connect your device to ensure communication while WiFi is out of use, how about staying in a remote location with no access to a cellular network? And that's the point.

In a way, WiFi ensures that we can use the network where the reception is too poor for a cellular network, and at the same time maintains the speed for us. So, it’s urgent to solve the WiFi issue.

Why does my iPhone keep disconnecting from WiFi when locked? How to fix it? This article is written to help you solve these problems.

Part 1: Why Does My iPhone Keep Disconnecting from WiFi When Locked?

The issue leading to disconnect from WiFi when you lock your iPhone can be attributed to network settings and configuration issues. The network settings refer to all your iPhone settings related to WiFi connection. For example, to save your battery and keep it in good condition, the iOS system disconnects WiFi when you lock your iPhone, since it recognizes that connecting WiFi while the iPhone is locked wastes so much battery. In this case, all you need to do is change your settings on your iPhone for the issue to be successfully resolved. In addition, the issue could be caused by a configuration issue that occurs due to an iOS upgrade or system issue. If you are in this situation, simple settings may sometimes be useful.

But if the method of resetting your iPhone's settings does not work, it is best to use a professional system repair tool to fix your system. In the following content, 6 methods will be offered to help you fix iPhone disconnecting from WiFi when locked. Choose the appropriate approach for your situation.

Part 2: How to Solve iPhone Disconnects from WiFi When Locked?

Method 1: Reconnect WiFi Network

Errors may occur to WiFi network connection if you have connected to the WiFi for a long time. Disconnecting and rejoining the WiFi network may help you solve your problem.

1. Go to Settings.

2. Navigate to "WiFi".

3. Find your WiFi and tap on the icon of "i".

4. Tap "Forget This Network".

5. Last, go back to Settings and find "WiFi", enter your password and rejoin the network again.

Method 2: Turn Your Configure Proxy to Automatic

iPhone disconnecting from WiFi when locked may be caused by an HTTP Proxy problem. Changing your Configure Proxy to automatic can help you get rid of this issue.

1.Go to Settings.

2. Tap "WLAN".

3. Connect your WiFi and tap on the icon shown on the right.

4. Tap "Forget This Network".

5. Choose "Forget" on the pop-up.

6. Scroll down to find your WiFi again. Don’t connect it.

7. Tap on the icon shown on the right to find Configure Proxy.

8. Tap "Automatic".

Method 3: Disable WiFi Assist

WiFi Assist is a feature that automatically connects to the cellular network and turns off the WiFi network when its connectivity is poor. Follow the steps to turn it off in case your WiFi network connection changes.

1.Go to Settings on your iPhone.

2. Tap "Cellular".

3. Turn off the "WiFi Assist".

Method 4: Reset Network Settings

Resetting the network settings means that the factory network settings are restored for you without any data loss. If all of the basic network settings mentioned above do not work, you can reset the network settings on your iPhone. Here's the tip.

1. Go to Settings.

2. Tap "General".

3. Find "Transfer or Reset iPhone".

4. Tap "Reset".

5. Select "Reset Network Settings".

6. Connect to your WiFi again.

Method 5: Restart Router

If the WiFi signal gets worse, the WiFi is disconnected and replaced with a cellular network. Reboot your router to check if the problem has reappeared. Shut down the router's power supply and plug it back in after a while. 60 seconds would be better for it.

Method 6: Fix iPhone Disconnecting from WiFi When Locked with TunesKit iOS System Recovery.

System errors may exist on your iPhone if 5 methods mentioned above do not work for you. The best and most practical tool to repair the system is highly recommended to you. With TunesKit iOS System Recovery, you can fix disconnection from WiFi when your device locked in a super easy way.

TunesKit iOS System Recovery is an integrated system repair tool with a high success rate and simplified operation. It can fix more than 150+ system problems, including device problems, screen stuck, mode stuck, apple driver error and other problems. TunesKit iOS System Recovery enables system upgrade and downgrade, reset device, enter or exit recovery mode with one-click. A simple interface and detailed step-by-step instructions are provided by TunesKit to help you successfully and easily fix your iOS issues such as iPhone 11 disconnects from WiFi when locked.

Here are the detailed steps to use this tool:

Step 1: Connect Your Device

Please download TunesKit iOS System Recovery first, then launch it. Connect your iPhone to your computer with USB cable and click "iOS System Repair".

Step 2: Choose problems & Repair type

Choose "Device Problems" displayed on the left of the interface, then click "Start". Turn to "Standard Repair", the data will not be erased in this mode. Standard Repair is recommended first. And if it still does not work, try to use Deep Repair, which will erase all the device data. Choose the appropriate mode to fix your system problems.

Step 3: Download firmware package & Start to repair

Please check your device's info and then download the firmware package. After verification, click "Start" to fix your system. Be patient and wait for it. It only takes a few minutes to fix your iOS system. Finished!

Conclusion

The 6 methods have been tested. And they completely work on different models or versions of iOS, and the most useful and practical way is to solve iPhone disconnecting from WiFi when locked with TunesKit iOS System Recovery. It is highly recommended for its high success rate and easy-to-use. It saves me a lot of time and effort. Try to fix your iPhone with the methods mentioned in this article. Hopefully, this will give you real support.