Updated to KitKat and now my Note 3 won't send SMS via Google Hangouts first thing in the AM. If I reboot the phone eventually it sends then all at once. Yesterday I didn't notice Hangouts hadn't sent anything until an hour into the day. Once I reboot the phone the messages get sent and it appears to work fine for the rest of the day. This is the second day in a row this happened. Both times first thing in the morning.