I can imagine that could be something that is very frustrating, some things that may help others help you would be:
1. What are you running on your phone? (I.e. firmware, stock or custom ROM, recovery)
2. Are you on Sprint or using another network such as boost?
3. If you are using a custom ROM how exactly did you go about getting it on your phone?
This information may help pinpoint what's going on.
Lastly you may want to download an app that will enable you to grab a log cat, so somebody that knows how to read them could look at that information to help shed some light on it.
Sprint Samsung Galaxy Note 3 32GB (my S3 went for a swim)