diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/service/impl/DeviceServiceImpl.java b/src/main/java/com/genersoft/iot/vmp/gb28181/service/impl/DeviceServiceImpl.java
index 410d5a5d..17dadef1 100755
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/service/impl/DeviceServiceImpl.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/service/impl/DeviceServiceImpl.java
@@ -443,7 +443,7 @@ public class DeviceServiceImpl implements IDeviceService {
         device.setCreateTime(DateUtil.getNow());
         device.setUpdateTime(DateUtil.getNow());
         if(device.getStreamMode() == null) {
-            device.setStreamMode("UDP");
+            device.setStreamMode("TCP-PASSIVE");
         }
         deviceMapper.addCustomDevice(device);
     }
diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/RegisterRequestProcessor.java b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/RegisterRequestProcessor.java
index 44a3eb1e..05839f8a 100755
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/RegisterRequestProcessor.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/RegisterRequestProcessor.java
@@ -166,7 +166,7 @@ public class RegisterRequestProcessor extends SIPRequestProcessorParent implemen
 
             if (device == null) {
                 device = new Device();
-                device.setStreamMode("UDP");
+                device.setStreamMode("TCP-PASSIVE");
                 device.setCharset("GB2312");
                 device.setGeoCoordSys("WGS84");
                 device.setMediaServerId("auto");
@@ -174,7 +174,7 @@ public class RegisterRequestProcessor extends SIPRequestProcessorParent implemen
                 device.setOnLine(false);
             } else {
                 if (ObjectUtils.isEmpty(device.getStreamMode())) {
-                    device.setStreamMode("UDP");
+                    device.setStreamMode("TCP-PASSIVE");
                 }
                 if (ObjectUtils.isEmpty(device.getCharset())) {
                     device.setCharset("GB2312");
diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/message/response/cmd/DeviceInfoResponseMessageHandler.java b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/message/response/cmd/DeviceInfoResponseMessageHandler.java
index 9db37b41..1de3ff7a 100755
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/message/response/cmd/DeviceInfoResponseMessageHandler.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/message/response/cmd/DeviceInfoResponseMessageHandler.java
@@ -79,7 +79,7 @@ public class DeviceInfoResponseMessageHandler extends SIPRequestProcessorParent
             device.setModel(getText(rootElement, "Model"));
             device.setFirmware(getText(rootElement, "Firmware"));
             if (ObjectUtils.isEmpty(device.getStreamMode())) {
-                device.setStreamMode("UDP");
+                device.setStreamMode("TCP-PASSIVE");
             }
             deviceService.updateDevice(device);