Login is from untrusted domain

  • Hi friends,

    We had an AlwaysOn setup with (Primary, HA and DR) in three Azure servers. All are under the same domain. Recently I noticed that when we try to Primary to HA via SSMS, I'm getting the connection error " The login is from an untrusted domain and cannot be used with windows authentication". However I'm able to connect to Primary to DR and from DR to Primary too. When I googled, blogs suggest that to create SPN for the SQL Service account. Do anyone faced this type of error?

    Note: All the SQL  instances are running under same SQL service account. Always On is not configured due to this error. 

    Thanks in advance for the your points, views and suggestions.

  • - Are you using a group managed service account? I think so but I want to check.
    - Does your account have permission to register SPNs? You can check in the command prompt by typing setspn -l [DOMAIN\ACCOUNT]  (that's safe to run).

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