Critical backup failure: ServerFaultCode: Cannot complete login due to an incorrect user name or password

Topic

When attempting an agentless backup of a protected machine, you receive the error message:
"Critical backup failure: ServerFaultCode: Cannot complete login due to an incorrect user name or password.. InvalidLogin: InvalidLogin Object ( )."

Environment

  • Datto SIRIS Agentless Backups

Description

This error can occur when the login information used to create the hypervisor connection has changed on the host or vCenter, and is no longer current on the Datto appliance.

Resolution

  1. Edit the hypervisor connection information on the Datto appliance using the same connection name
  2. Attempt another backup.