I'm sorry about the issue you having syncing your device. I'm not sure what device you are trying to sync, so please review one of the articles to troubleshoot the issue based on how your device connects to the computer:
Issues syncing ANT Fitness devices with Garmin Express
Fitness mass storage device fails to sync with Garmin Express
If you continue to have issues with the device syncing, please contact Product Support to troubleshoot the issue.
