How to Fix Wi-Fi Disconnects When iPhone Is Locked

If you are an iPhone user and your Wi-Fi automatically disconnects every time the phone is locked, check out this article to know how to fix Wi-Fi disconnects when iPhone is locked.

By Lydia Smith | Posted: May. 04, 2018, Last Updated: May. 07, 2018
Home > AnyTrans for iOS > iOS 11.3 Problem > How to Fix Wi-Fi Disconnects When iPhone Is Locked

Wi-Fi has become one of the necessities to live in the current society. Normally, people prefer using Wi-Fi over mobile data when performing system or app updates. This is because Wi-Fi doesn’t usually have a data cap like mobile data. But after updating their iPhone to iOS 11.3, many users have reported that their Wi-Fi disconnects when iPhone is locked. This has made quite an uproar in the iPhone community.

Usually, you can’t keep the screen up all the time while the update is being downloaded. But according to the report, the Wi-Fi disconnects when iPhone is sleeping or locked, so the updates will be disrupted. One way to counter this problem is disabling the auto sleep function on iPhone, but this will drain the battery too fast.

So, you need to find other effective and feasible solution to the Wi-Fi is disconnects when iPhone is locked on iOS 11.3 problem. Here, in this article, we will share the best solutions to fix this problem.

See Also: What Does the Moon Mean on My iPhone Text Message in iOS 11/11.3 >

How to Fix Wi-Fi Disconnects When iPhone is Locked

Many iPhone users have faced Wi-Fi is disconnects when iPhone is locked on iOS 11.3. This can be caused due to network related issues, particularly Wi-Fi network. Below are some of the best tips and solutions to solve the Wi-Fi disconnects when iPhone is sleeping/locked.

Tip 1: Forgetting the Wi-Fi Network and Rejoining

If you are encountering the Wi-Fi disconnects when iPhone is locked problem on a particular Wi-Fi network, for e.g. your home or office, try forgetting it from the network settings and then rejoin the network. By forgetting the network, you will erase all the settings related to the particular Wi-Fi network that may be turning off Wi-Fi when the iPhone is locked or sleeping.

Step 1 Go to the Settings of your iPhone and then tap on Wi-Fi.

Step 2 Select the network on which you are facing problem and tap on Forget this network option on the next screen.

Step 3 Turn off the Wi-Fi for a few seconds and again turn it on.

Step 4 Select your Wi-Fi network and type in the password for this network to connect to this network.

How to Fix Wi-Fi Disconnects When iPhone Is Locked

How to Fix Wi-Fi Disconnects When iPhone Is Locked

Tip 2: Disabling VPN

An active VPN is also known to cause many problems including Wi-Fi disconnects when iPhone is locked. So, if you have an active VPN on your iPhone, disabling it may help in solving the problem. To disable the VPN, navigate to iPhone Settings > VPN and then turn off the VPN if it is connected. Disconnecting the VPN should solve the Wi-Fi disconnects when iPhone is sleeping. But if even after disabling the VPN doesn’t fix the problem, move on to next solution.

How to Fix Wi-Fi Disconnects When iPhone Is Locked

How to Fix Wi-Fi Disconnects When iPhone Is Locked

Tip 3: Update Router Firmware

If Wi-Fi is disconnecting when iPhone is locked or sleeping, it is not necessary that the problem is associated with your iPhone. Sometimes, Wi-Fi router can also cause problems like Wi-Fi disconnects when iPhone is locked. You can try updating the router firmware if it is outdated. As every router manufacturer has a different process of updating the firmware, visit the official website of your router manufacturer to get the detailed information about the process.

Tip 4: Turn off Wi-Fi Networking Services

Turning off Wi-Fi networking services can also help in fixing the Wi-Fi disconnects when iPhone is locked issue as reported by many users. Moreover, turning off the Wi-Fi network will also help you save battery. To turn off the Wi-Fi networking, go to Settings> Privacy > Location Services> System Services and then slide the Wi-Fi networking toggle to OFF.

Fix Wi-Fi Disconnects When iPhone Is Locked

Fix Wi-Fi Disconnects When iPhone Is Locked

Tip 5: Disable Wi-Fi Assist

Wi-Fi assist is a feature that turns on the cellular data when there isn’t any reliable Wi-Fi network to connect to or the connected Wi-Fi network is too weak. But this may very well be the cause of Wi-Fi disconnects when iPhone is sleeping. You can turn off the Wi-Fi assist if you think that the Wi-Fi is caused by the Wi-Fi assist by navigating to Settings > Cellular > Wi-Fi Assist.

How to Fix Wi-Fi Disconnects When iPhone Is Locked

How to Fix Wi-Fi Disconnects When iPhone Is Locked

Tip 6: Restore and Reset iPhone System

If all the above solutions to fix the Wi-Fi disconnects when iPhone is locked, then you can try resetting the iPhone network settings to erase all the Wi-Fi settings and password. You would need to again enter the passwords for the networks that were already saved. But this has shown to remove any problematic settings that may be caused by a faulty Wi-Fi setting. If this too doesn’t work, resetting and restoring the device is the only option. To prevent data loss, you should backup your data beforehand before restoring the device.

To restore the entire iPhone system and settings, follow Settings > General > Reset > Erase All Content and Settings.

To reset the network settings, Go to Settings > General > Reset > Reset Network Settings.

How to Fix Wi-Fi Disconnects When iPhone Is Locked

How to Fix Wi-Fi Disconnects When iPhone Is Locked

Bonus Tip: How to Backup iPhone Files without iTunes/iCloud

Backing up iPhone data with iTunes or iCloud is a very strenuous process. But you can’t skip the backup before you restoring the iPhone to fix the Wi-Fi disconnects when iPhone is sleeping to prevent data loss. Restoring the backup is as tiring as the backup process. So, you would want a better alternative to backup iPhone files.

AnyTrans for iOS is the tool to help you manage your iPhone with ease. Below are some of the features of AnyTrans for iOS:

Just download AnyTrans for iOS to have a free trial. And follow the guide to backup all iPhone files to computer without iTunes/ iCloud.

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How to Transfer Files from iPhone to Computer

How to Transfer Files from iPhone to Computer

The Bottom Line

Sometimes, resetting and restoring the iPhone is the final option to solve various problems like Wi-Fi disconnects when iPhone is locked on iOS 11.3. But doing so can cause data loss. So, you can rely on AnyTrans for iOS to manage your iPhone data easily and securely. If you meet any problem while using the tool, let us know in the comments below.

Lydia Smith

Member of iMobie team, an optimistic Apple user, willing to share solutions about iOS related problems.

AnyTrans® for iOS

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