Thought I would mention something I just discovered. I have a Sprint WiFi Hot Spot, but I think this might be the same for any of the 4G LTE providers.
I'm spending the winter in a fringe or marginal LTE area with only 1 bar strength. Performance varies between great and poor with most things just taking too long to finish.
For some reason I decided to change my settings from Auto to "3G only" and discovered it consistently has 5 bars. Yes, it's slower than 4G LTE when it's working, but it's a lot faster than 4G LTE when it's just spinning its wheels.
Bottom line is I can get lots more done on 3G without the frustration of an erratic LTE signal.
Apparently, Auto doesn't immediately switch to 3G when 4G LTE drops out. It must keep trying for awhile.
