I've had no problem connecting to EN in most places, but I tend to travel to major cities such as NY, LA, SF, Philadelphia and Chicago, The only place I could not get EN or QNC service was on a ski trip to Wintergreen in Virginia. But I was on a mountain and while I could get digital cell service, the signal was weak and would often cut out. VZW makes it clear that EN is available only in major cities and surrounding areas, but I was surprised that I could not connect to QNC when I had a digital signal.