Why does my facebook only work on WiFi and fails to work on mobile data.

My iPhone 12 has a problem, facebook only works on wifi, but when am on mobile data it doesn’t work yet I allowed mobile data usage for facebook in my settings. How can this problem be fixed?

iPhone 12, iOS 26

Posted on Nov 10, 2025 10:17 PM

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1 reply

Nov 10, 2025 10:50 PM in response to Frankangulibo

Mysterious. Apart from the fact that Mobile Data can be disabled in individual apps, there are no other features that prevent an app from not being able to be used with Mobile Data.


Try this. Go in and disable the use of Mobile Data for the Facebook app. Then open the App Store and check for an update - after that restart your iPhone. Once it is on, go back and enable Mobile Data for Facebook, and see if that made a difference. If this doesn't work, try deleting the Facebook app, restarting and reinstalling it.


Another thing. If you have an active VPN connection, try disabling it and see if that helps.

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Why does my facebook only work on WiFi and fails to work on mobile data.

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