I have three Samsung phones different models in my family. All three of them randomly lose data. I will go for an hour or more without knowing that I have no data on my phone missing phone calls and text messages. Once I realize that I, myself can not make calls, and restart my phone all the text messages show up. It happens at random times and three phones in the last couple of days. It already happened to me twice today and its only 2pm.. Does anyone know how to fix this?