My new LG G2 phone was ATT i switched it to straighttalk like my older LG phone got new SIM ect. It wont get good signal. Most of the time when it does get service it's the E by reception bars. But very rarely it will get 4G service it never stays for long though. I've went through access point settings and made sure it was all where it needed to be and still the same thing when my wife's older LG phone gets perfect service right beside me... Am I missing something or what?