01-24-2016 18:33
01-24-2016 18:33
01-25-2016 03:13
01-25-2016 03:13
Welcome to the Fitbit Community @WLLH! I'd start by following these syncing troubleshoots. Make sure that there isn't another bluetooth device that may be creating interference during the process. Setting up your tracker as a new device may also help you to bring it back to sync as usual.
Hope this helps. Let me know the outcome.