When I first got the phone back in December, it did fine. Recently, it started having issues where it has been dropping the home network when I am using the phone. It keeps telling me it's waiting for a better network connection even though the network connection is the best! If I don't use the phone and just watch it, it won't do that. I tried doing a factory reset, which seemed to help for a while, but it started again. Did another factory reset, but that didn't help this time. Any clue what is going on?