Only getting notifications on wifi

[Kaitlynn Mayo]

For some reason, I can only receive notifications on wifi. Specifically from facebook, instagram, snapchat etc. My mobile data is always on and I orginally blocked certain apps from using background data, but I have unblocked them. This is very frustrating and any help would be much appreciated.

Thanks!

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[Jwong123]

have you tried factory resetting it? this also happen to me on my s5