Q: LTE Connectivity Issue after upgrade to iOS 10- SE

Don't know if anyone else is experiencing this, but after upgrading to iOS 10 on my iPhone SE, when I leave an LTE area and go to no service area or area less than LTE and re-enter an LTE area, I have no service. It either stays at no service or reports 4g, but when I go to use an app, it says no network connected. I've tried All the usual tricks... Restored from backup, cleared cache, reset network connections, done a hard reset, nothing works. Only thing that gets me back to LTE is turning phone off and back on. Anyone else experience this? I never had this Issue before upgrading to iOS 10.