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BugZero found this defect 2685 days ago.
When attempting to restore a database using Veeam Explorer for Microsoft SQL Server with the "Use current account" option, the following error occurs:
Veeam Explorer for Microsoft SQL Server is unable to pass/delegate the current user security token to a remote mount server.
Select the option "Use the following account:" and enter the credentials manually.
For more information about Veeam Explorer for Microsoft SQL Server review the following: User Guide Considerations and Limitations Required Permissions