My youtube, faceebok, whatsapp are not receiving and sending until I restart my LG G5 android phone. I was trying to delete some of the unused apps. Not my facebook, youtube say my internet is not connected eventhough the setup says I am connected to interent.
Seems to me like you've removed some of the google apps, used by these other apps. Which apps did you remove? I'd advise reïnstalling those apps, and don't remove apps like google play, google connectivity services, etc... also see if you haven't disabled some services or apps that youtube, facebook and whatsapp need. You should read the description on the google play services to understand more about this: https://play.google.com/store/apps/details?id=com.google.android.gms&hl=en