My network extender is 'In Service', and connected to 9 satellites, or whatever. I've had this for well over a year, using the same cell phone, without any problems. Starting today, I have full bars, until I try to make a phone call. When phone tries to connect, bars drop to zero and no call can be placed. I have a Samsung S6. And no, I cannot call #48 to check because it won't connect the call.