There are some known Daylight Savings Time Zone issues in Windows that has been found to prevent the Auto-Uploader from operating successfully. If you believe this may be preventing your Auto-Uploader from working correctly, you should run the below patch from Microsoft:
http://support.microsoft.com/mats/windows_time_zones_and_dst/en-us
Please note: You can run the tool as a safety measure as it will first analyze your system to see if the patch is needed before applying the patch.