IPhone 5. Sprint LTE Connection Switching off?

I live in a LTE area, so I usually have it all day, everyday. But for the past couple of days it's been acting weird, it keeps switching back to 3G.Me & my mom both have iPhone 5's & it's doing it to the both of us, one minute LTE, next thing ya know 3G
What could be the problem?

It depends on the Service you are on. Its probably the company updating their LTE service due to high volume. If it continues, call your service provider and check

Its sprint… Their lte isn't stable as it should even in Lte areas

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