Hello guys, I recently encountered this problem on my friends iPhone.
The fix is to go into Settings-General-Reset-Reset All Settings.
Once this process is complete go back into Settings-Apple ID-Sign out.
Hopefully this fixes your problems :)
Roshrajj
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@angelaerdelyi101
Try resetting all settings (instead of network settings) i posted the walkthrough above your post. It should work as i did this yesterday :)