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Datto Windows Agent: “Backup Failed Due to a Problem Establishing Secure Communications With the Agent”

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Issue

When you try to start a backup for a system protected by the Datto Windows Agent, you receive the error message, "BK102: "Backup failed due to a problem establishing secure connections with the agent."

Environment

  • Datto ALTO
  • Datto SIRIS
  • Datto Windows Agent

Cause

The Datto appliance attempted to contact the agent on the protected machine, but it received an "Error 401 (unauthorized)" response.

Resolution

Additional Resources

 


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