The Do not allow adding new targets via manual configuration machine setting should be configured correctly. If enabled then new targets may not be manually configured by entering the target name and target portal; already discovered targets may be manually configured. If disabled then new and already discovered targets may be manually configured. Note: if enabled there may be cases where this will break VDS. Fix: (1) GPO: Computer Configuration\Administrative Templates\System\iSCSI\iSCSI Target Discovery\Do not allow adding new targets via manual configuration (2) KEY: HKLM\Software\Policies\Microsoft\Windows\iSCSI\NewStaticTargets