WiFi Not working while I'm not using the Phone
I have downloaded the OTA from Verizon. Please find the attached picture of my Phone, to know the Technical information
MY Problem :
When, I'm not using my Phone, even though, I'm at home and I have WiFi at home, My phone is disconnecting from the WiFi and using the Cll 4G LTE Signal, after I lock my phone screen.
This is the 3rd month in a row, I'm paying insane charges for the Data. Did anyone found a solution for the problem??