Member servers are not able to authenticate to the Domain Controller

KB ID: 1281
Product: Veeam Backup & Replication
Version: Legacy - 9.x
Last Modified: 2018-12-06
KB Languages: DE


We receive the error Failed to connect to Veeam Backup & Replication server: No authority could be contacted for authentication. This can manifest as a failure to connect to the Veeam Backup & Replication console, on restore, or on a VM running in a surebackup virtual lab.


The server has lost trust with the Active Directory domain.


Remove the Veeam Backup & Replication server, or affected restore, or surebackup VM from the domain, reboot, and re-add Veeam Backup & Replication server to the domain.

More Information

Please reference the Microsoft KB relative to your operating system.

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