The DR Device OS was not upgraded to the correct version prior to the upgrade on NetVault to 11.4.5. All DR Devices are required to be at OS level 4.0.3.x or above.
See NetVault Installation Guide: https://support.quest.com/technical-documents/netvault-backup/11.4.5/installation-guide/11#TOPIC-837893
- DR Devices must be removed from NetVault using Manage Devices.
- Upgrade all DR Devices to latest OS revision (be sure to download correct package): https://support.quest.com/dr-series/dr4300/download-new-releases
- Add DR Device using backup_user account
- Once device is added each RDA container must be added to that device