[参考译文] CC3235S：RabitMq MQTT 连接错误

https://e2e.ti.com/support/wireless-connectivity/wi-fi-group/wifi/f/wi-fi-forum/1039964/cc3235s-rabitmq-mqtt-connection-error

您好！

我正在尝试连接 rabitmq 代理、以下是 代码中设置的参数、  

#define MQTT_CONNECTION_FLAGS       MQTTCLIENT_NETCONN_URL | MQTTCLIENT_NETCONN_SEC \
                                    | MQTTCLIENT_NETCONN_SKIP_CERTIFICATE_CATALOG_VERIFICATION
#define MQTT_CONNECTION_ADDRESS     "rhelrmq.api-test.io"
#define MQTT_CONNECTION_PORT_NUMBER  31678

char *MQTTClient_secureFiles[4] = { "devicekey.key", "device.crt",
                                    "ca.crt",
                                    NULL };
MQTTClient_ConnParams mqttConnParams = {
//MQTT_CONNECTION_FLAGS,                  // connection flags
        MQTTCLIENT_NETCONN_URL | MQTTCLIENT_NETCONN_SEC,
        MQTT_CONNECTION_ADDRESS,                // server address
        MQTT_CONNECTION_PORT_NUMBER,            // port number of MQTT server
        SL_SO_SEC_METHOD_TLSV1_2,     // method for secure socket
        SL_SEC_MASK_SECURE_DEFAULT,         // cipher for secure socket
        4,                              // number of files for secure connection
        MQTTClient_secureFiles                  // secure files
        };
        
        .
        .
        .
        .
        .
        .
        .
        
        mqttClientHandle = MQTT_IF_Connect(mqttClientParams, mqttConnParams,
                                       MQTT_EventCallback);
        if (mqttClientHandle < 0)
        {
            while (1)
                ;
        }
        
        

我收到以下连接错误、  

[生成：错误]连接失败：-456

[生成：信息] MQTT_EVENT_SERVER_DISCONNECT

我已经使用 MQTT Box 应用程序测试了相同的证书、所有证书都正常工作。 是否有人知道如何解决此错误？