Hi, I have searched the forum and have tried to resolve with AT&T. I got my new plus a week ago and everything was great. Suddenly my phone wouldnt recognize my network connection so I couldnt receive of place calls. After several hours of troubleshooting they decided it was a defective phone. they sent a new one and it does the same thing. Its not the sim card because it works in my junk pantech. Anyone else ever had of have this issue?