After upgrading NetVault to version 12.3 and a firewall is present between the NVBU Server and the DR-Series (or QoreStor) it will cause the DR status change to offline from Manage Devices and if the appliance is removed it would fails with the error above when try to re-add it.
© ALL RIGHTS RESERVED. Feedback 이용 약관 개인정보 보호정책 Cookie Preference Center