I am using NTbackup on a Windows 2003 server to backup my Exchange server. I am backing up to a network share that is located on a usb hard drive attached to my DC. When I run the backup manually it works fine. However when I schedule it to run it fails with the following error:
The operation was not performed because the specified media cannot be found.
I checked to see if the task scheduler service was started and it is. Why is this happening and what are my options?