This is my last attempt before switching carriers. My home and surrounding area in the neighborhood has limited 3G/4G. My Note 4 toggles trying to find service and my texts messages won't send. We have 3 different cell phones this is happening to so it's not device specific. We bought the Samsung extender hoping to pull in a signal but no luck. Had to return it. It's clearly a signal issue in our surrounding area. Yes, it does show we have 4G coverage but there is something wrong. Please help me resolve this before switching carriers. Thanks.