Find the CyberSecure Advanced scheduler service in the list (normally under “Online Backup Scheduler (CyberSecure Advanced)” and right-click to get into properties
Under the “Log On” tab, change the user from “Local System account” to “This account” – and enter a user with full privileges (ie. a domain administrator)
Click OK out of everything and restart the scheduler service
The scheduled backup will now run in the context of the logged on user and not the local system account.