I live in zip code 15237, I can provide my street address if needed. when I look on the coverage map it shows I should have full 4G coverage at my house. I barely get 2 bars of 1X and can't even make phone calls. It isn't and issue of something the house is build out of because it is the same situation outside. This is very strange considering I live near several cell towers. Is there any remedy for this issue?