Hi All, Just got a Samsung Galaxy S3 for X-mas. I am enjoying the phone. It is fun and easy to use. I started getting a message preparing network at home yesterday and the phone kept rebooting all night. We reset the phone back to the factory settings. But it still kept doing it. I did not have this issue at work yesterday and now back here again, it is working fine. I checked the previous posts on this topic. Seems it can be alot of different things. Just seemed odd.