解決java.net.ConnectException: Connection timed out: connect報錯

使用華爲OMF開放實驗室定向加速解決方案API時，運行TestQosApply類，http://developer.huawei.com/ict/cn/doc/site-omf_development_process_zh/site-omf_development_process_zh.html#1，遇到以下問題

getLocalIp, ip is 192.168.220.199
qosResourceApply jsonBody->{"OTTchargingId":"","ResourceFeatureProperties":[{"FlowProperties":[{"DestinationIpAddress":"172.19.53.108","MaximumUpStreamSpeedRate":1000000,"MaximumDownStreamSpeedRate":4000000,"SourcePort":1000,"Protocol":"UDP","Direction":2,"DestinationPort":2000,"SourceIpAddress":"192.168.220.199"}],"Type":1,"Priority":1,"MinimumUpStreamSpeedRate":200000,"MaximumDownStreamSpeedRate":4000000}],"CPSPID":"","CallBackURL":"","Duration":600,"UserIdentifier":{"MSISDN":"+8613810005678","PublicIP":"192.168.220.199","IP":"192.168.220.199","IMSI":"460030123456789"},"APN":"","ServiceId":"BufferedStreamingVideo"}
java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at sun.security.ssl.SSLSocketImpl.connect(Unknown Source)
at sun.security.ssl.BaseSSLSocketImpl.connect(Unknown Source)
at sun.net.NetworkClient.doConnect(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.protocol.https.HttpsClient.<init>(Unknown Source)
at sun.net.www.protocol.https.HttpsClient.New(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(Unknown Source)
at com.huawei.esdk.qos.service.QosService.qosResourceApply(QosService.java:256)
at com.huawei.esdk.qos.test.TestQosApply.main(TestQosApply.java:15)
TestQosApply result->false

請教各路大神