Failed to connect to Amazon MQ with Spring Boot 2 and Stomp

I am building WebSocket application with Spring Boot 2, Stomp, and Amazon MQ.

However I cannot connect to Amazon MQ broker. I get Failed to connect: connection timed out error.

My WebSocket Configuration :

@Configuration
@RequiredArgsConstructor
@EnableWebSocketMessageBroker
public class WebSocketConfig implements WebSocketMessageBrokerConfigurer {

    private final ActiveMQProperties properties;

    @Override
    public void registerStompEndpoints(StompEndpointRegistry registry) {
        registry.addEndpoint("/")
                .setAllowedOrigins("*")
                .withSockJS();
    }

    @Override
    public void configureMessageBroker(MessageBrokerRegistry registry) {
        registry.enableStompBrokerRelay("/topic")
                .setAutoStartup(true)
                .setRelayPort(61614)
                .setRelayHost(properties.getBrokerUrl())
                .setClientLogin(properties.getUser())
                .setClientPasscode(properties.getPassword())
                .setSystemLogin(properties.getUser())
                .setSystemPasscode(properties.getPassword())
               .setTcpClient(createClient());
    }

    private TcpOperations<byte[]> createClient(){
        return new ReactorNettyTcpClient<>((client) -> client
//                .host(properties.getBrokerUrl())
//                .port(61614)
                .addressSupplier(this::getAddress)
                .secure(), new StompReactorNettyCodec());

    }

    private SocketAddress getAddress() {
        try {
            InetAddress address = InetAddress.getByName(properties.getBrokerUrl());
            SocketAddress socketAddress = new InetSocketAddress(address, 61614);
            return socketAddress;
        } catch (UnknownHostException e) {
            log.error(e);
        }
        return null;
    }

Log

2020-03-27 16:21:19.419  WARN 49890 --- [ealth-indicator] o.s.boot.actuate.jms.JmsHealthIndicator  : Connection failed to start within 5 seconds and will be closed.
2020-03-27 16:21:39.156  INFO 49890 --- [ient-loop-nio-1] o.s.m.s.s.StompBrokerRelayMessageHandler : TCP connection failure in session _system_: Failed to connect: connection timed out: {my-aws-url}:61614
io.netty.channel.ConnectTimeoutException: connection timed out: {my-aws-url}:61614
    at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe$1.run(AbstractNioChannel.java:261) ~[netty-transport-4.1.45.Final.jar:4.1.45.Final]
    at io.netty.util.concurrent.PromiseTask.runTask(PromiseTask.java:98) ~[netty-common-4.1.45.Final.jar:4.1.45.Final]
    at io.netty.util.concurrent.ScheduledFutureTask.run(ScheduledFutureTask.java:170) ~[netty-common-4.1.45.Final.jar:4.1.45.Final]
    at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164) ~[netty-common-4.1.45.Final.jar:4.1.45.Final]
    at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:472) ~[netty-common-4.1.45.Final.jar:4.1.45.Final]
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500) ~[netty-transport-4.1.45.Final.jar:4.1.45.Final]
    at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) ~[netty-common-4.1.45.Final.jar:4.1.45.Final]
    at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.45.Final.jar:4.1.45.Final]
    at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.45.Final.jar:4.1.45.Final]
    at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_241]
2020-03-27 16:21:39.156 DEBUG 49890 --- [ient-loop-nio-1] org.springframework.web.SimpLogging      : Cleaning up connection state for session _system_

I think you are missing an entry in Security Group/NACL to allow traffic on port 61614. I would also check the client hosts have access to the broker host using traceroute. Resolution for either of these should resolve the issue.