How to prevent your iPhone from automatically switching between Wi-Fi and cellular

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When you use a new iPhone with recent iOS versions, the device automatically switches between Wi-Fi and cellular. Switching to cellular data mostly happens when the Wi-Fi connection is slow or unreliable and doesn't provide you with uninterrupted internet access. However, many of us have limited cellular data plans and it can be problematic when our iPhone switches to 4G/5G without notification. This behavior can result in your cellular plan being exhausted if you download large files during the switch.



Fortunately, you can disable this Special feature to prevent your iPhone from automatically switching between Wi-Fi and cellular. You can find it in the Settings app under the WLAN Assistant Toggle. Whether you are using iOS 17 or an earlier operating system version, the steps to follow are the same and you can find them below.


How to disable Wi-Fi Assist on iPhone

1. Start the Settings App.

2. Tap Mobile communications.

3. Scroll down and uncheck WLAN Assistant.

How to prevent your iPhone from switching between Wi-Fi and cellular

How to prevent your iPhone from switching between Wi-Fi and cellular

4. Your iPhone will no longer automatically switch to cellular data when your Wi-Fi connection is unreliable.


When should iPhone's Wi-Fi Assist setting be turned on or off?

While WLAN Assistant can be problematic for people with limited data, but is a great feature for those without. If your mobile plan doesn't limit your mobile data usage, you should keep this feature enabled to get the best possible web browsing experience. Ultimately, you need to judge whether or not it's safe to leave it enabled in your particular case.



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