I figured out how to fix. Go to settings then lock screen and security then other settings then usage data access turn of usage data access for samsung apps fixed
if you are on the original its every 6 months which i love the 2nd jump plan is when ever u want as long as you have half of it paid off so for me the original is that best so i can traid every six months instead of paying a year to pay off half of phone they will have to pry me from original...
Use tmobiles WiFi router made by Asus its optimized for it mine works fantastic no dropped calls if youcall customer service I think they will charge u 25 dollar deposit its a 150 dollar router