Ever since i got the thunderbolt the 4G kept getting switched on and off every few minutes or so. i figured maybe it was because Rochester,NY has spotty 4G. So back home in NYC the same thing still happens. It's especially frustrating because i have to keep toggling the internet on and off when i'm trying to listen to my streaming radio that gets disconnected every 5 min. forcing me to listen to a minute of commercials when i do get connected again.