Has anyone experienced their T-mobile 4G stop working on cape cod at their home address which shows plenty of 4G coverage. Specifically 02559. My father in law has the GS3 and used to have 4G where he lives on the Cape, but recently all the GS3 shows is Edge network which is disappointing. The tower is like a half a mile away but seems to only be broadcasting toward the main highway and not toward the residental areas. Any suggestions?? Thanks.