this code does not work:(the Server attribute remains: localhost)

MongoClientSettings setting = new MongoClientSettings();
setting.Server = new MongoServerAddress($"mongodb://{_mongoDbHost}");

i have to clone the current Settings
MongoClientSettings setting = _dataBaseClient.Settings.Clone();
setting.Credentials = new[]

{ MongoCredential.CreateCredential(dataBase, userName, _password2Secure[password]) }

;
_dataBaseClient = new MongoClient(setting);