I've been using the Samsung Galaxy Prevail for about 3 months now.Its been a great phone up until last week.Its a issue that only occurs at home though.My 3g and bar service goes in and out of service and its a nightmare to make calls and send and receive messages.I called customer service and they did some trouble shooting over the phone and momentarily it worked and i was able to make calls at home for a couple of hours.But the problem has returned.And the biggest pain in the neck is text messages , it keeps attempting to send and maybe 1 in 10 go through and the other 9 i get the message not sent notification even though people tell me they are receiving my messages.So i keep sending it till it goes through and the people im texting tell me they get 5 + of the same message i sent.I dont know what else to do i tried the airplane mode trick , rebooting, setting everything back to factory settings but nothing.And keep in mind my wife has the same exact phone and gets perfect service at my house.What can i do?