Ohh ..Try creating a new forward lookup zone ...if it fails then your forest and domain DNS partitions are currupted
Please follow below link and see if the symptomps are similar
Acronis protects the complete Microsoft technology stack: Windows Server, Windows PC, laptop and Surface data; Microsoft business applications; Microsoft Hyper-V; Azure VMs; Microsoft Windows Server 2016; Microsoft Exchange 2016 and SQL Server 2016.
This tutorial will walk an individual through the steps necessary to install and configure the Windows Server Backup Utility.
Directly connect an external storage device such as a USB drive, or CD\DVD burner:
If the device is a USB drive, ensure i…