When WiFi kicks off because I'm no longer near the hotspot, 3G data connectivity (not a 4G LTE area), I do not get 3G data connectivity. I then try the "Airplane Mode" trick, which upon exiting will cause a fairly consistent reboot.
It is more pronounced when using GPS software at the same time as the airplane mode trick. If the phone is freshly booted (power cycle by removing battery) this trick will work the first few times. It will then get stuck in this mode of rebooting again.
GPS Apps: Waze or Google Nav/Maps/Latitude
It is really annoying to lose mobile data connectivity if the WiFi antenna is ever used. I've now resorted to turning off WiFi and enabling 3G/4G data manually, but with little success of avoiding a reboot or getting actual 3G data. And no, I'm not in a dead spot for 3G. It works fine if I never turn on WiFi.
Should I bring the phone to a VZW Store for eval? Will I lose all my apps (and more importantly the saved data from the apps) if my phone needs to get swapped out?