Cellular reception is greatly affected by your physical location. If you are in a basement/undergroud parking lot this may impede your ability to be located - try moving to an open area so you are in closer range of a cell tower. Some areas in a building or house may have 'dead zones' with little to no cellular reception - try to adjust your location in order to obtain better reception. Players in rural areas with little/poor cell tower reception may need to change their location more drastically to obtain a stronger signal.
