Background: My drive from work to home is 6.8 mile. At home there is no 4G signals at work there is 4G signals. I find that when i drive from work to home the 4G signal drops out about 2 mile before I get home. but when I drive to work the phone will not switch to 4G until I get very close (1/4 mile) from work. If I stop along the way on my trip to work and go to airplane mode and then out of airplane mode it will pick up the 4G right away even at the 2 miles from home point. Question: Why does it not auto switch when it starts seeing the 4G signal approximately 2 miles from my house why does it wait about 5 minute or 4 miles into the 4G area to switch? Thanks in advance for any possible answers.