I have an iPhone 5s on Verizon. Occasionally, it will disconnect from Verizon's network, say "Searching..." then reconnect. After it happens once, it happens pretty frequently. Then, for some reason, if I reset my network settings, it works fine for a while (several days), then starts doing it again. It isn't isolated to one area of town, either. It's happened at work, at home, and in Missouri when I was visiting family. Anyone else experienced this?