We have an SBS 2008 and are trying to run a backup to a external disk drive. The backup used to run just fine but now we are getting an error that "The server backup cannot start because the drive where you want to store the backup is not available. Ensure that any external drives are attached to the server, and then try again".
We have tried switching the USB ports around the server front to back and vice versa. We even cleaned out the c:\ (as suggested somewhere on the internet) and even just tried replacing the external drive all together. We have run out of ideas and could use some help. Thanks!