@Dunkman Thanks a lot for all your suggestions. However, the issue still exists and now I've got a new SIM card from Virgin and it works fine on my phone. Another question for you, this Public Mobile connection was a prepaid connection. I don't wan...
@ShawnC13 Yes, it works on WiFi and yes, I checked, the cellular data was enabled at times when my phone wasn't connected to WiFi. Thanks for the help though.
@Dunkman Thanks for the suggestions. I tried them all including factory reseting the phone but the issue persists. And yes, there is data available and active.