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A Spring Boot security usually generates a 401 error when the user is not authenticated or has insufficient permissions to access a specific resource. This error code indicates that the client needs to provide valid credentials (i.e., username and password) to access the resource.

On the other hand, a 403 error is generated when the user is authenticated but does not have sufficient permissions to access a particular resource. A 404 error is produced when the server cannot find the requested resource, and a 500 error occurs when there is an internal server error.

Therefore, if you consistently get a 401 error, it's because the authentication/authorization mechanism is not working correctly, or the user is not providing valid credentials. To fix this issue, you may need to check your configuration settings, ensure that the user has the appropriate permissions, or verify the user's credentials.