No puedo excluir MongoAutoConfiguration en Springboot-Kotlin (MongoSocketOpenException)

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Obtengo una MongoSocketOpenException cuando bash excluir MongoAutoConfiguration. Estoy tratando de conectarme a un MongoDB remoto. ¿Es correcta la syntax de @EnableAutoConfiguration teniendo en count que estoy trabajando en Kotlin?

Excepción:

com.mongodb.MongoSocketOpenException: Exception opening socket at com.mongodb.connection.SocketStream.open(SocketStream.java:63) ~[mongo-java-driver-3.4.2.jar:na] at com.mongodb.connection.InternalStreamConnection.open(InternalStreamConnection.java:115) ~[mongo-java-driver-3.4.2. jar:na] at com.mongodb.connection.DefaultServerMonitor$ServerMonitorRunnable.run(DefaultServerMonitor.java:113) ~[mongo-java- driver-3.4.2.jar:na] at java.lang.Thread.run(Thread.java:745) [na:1.8.0_20] Caused by: java.net.ConnectException: Connection refused: connect at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method) ~[na:1.8.0_20] at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85) ~[na:1.8.0_20] at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:345) ~[na:1.8.0_20] at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[na:1.8.0_20] at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[na:1.8.0_20] at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) ~[na:1.8.0_20] at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:1.8.0_20] at java.net.Socket.connect(Socket.java:589) ~[na:1.8.0_20] at com.mongodb.connection.SocketStreamHelper.initialize(SocketStreamHelper.java:57) ~[mongo-java-driver-3.4.2.jar:na] at com.mongodb.connection.SocketStream.open(SocketStream.java:58) ~[mongo-java-driver-3.4.2.jar:na] ... 3 common frames omitted