diff --git a/Source/LinkApp/Classes/Module/DistributionNetwork/Controller/TIoTSoftapWaitVC.m b/Source/LinkApp/Classes/Module/DistributionNetwork/Controller/TIoTSoftapWaitVC.m
index 4e7f60eca..57ad63188 100644
--- a/Source/LinkApp/Classes/Module/DistributionNetwork/Controller/TIoTSoftapWaitVC.m
+++ b/Source/LinkApp/Classes/Module/DistributionNetwork/Controller/TIoTSoftapWaitVC.m
@@ -12,9 +12,6 @@
 
 #import "TIoTCoreAddDevice.h"
 
-#define APIP @"192.168.4.1"
-#define APPort 8266
-
 @interface TIoTSoftapWaitVC ()<GCDAsyncUdpSocketDelegate,TIoTCoreAddDeviceDelegate>
 @property (strong, nonatomic) GCDAsyncUdpSocket *socket;
 @property (strong, nonatomic) dispatch_queue_t delegateQueue;
diff --git a/Source/LinkSDKDemo/Core/Controller/Device/TIoTWiredDistributionNetVC.m b/Source/LinkSDKDemo/Core/Controller/Device/TIoTWiredDistributionNetVC.m
index a4e211d7b..421739c8b 100644
--- a/Source/LinkSDKDemo/Core/Controller/Device/TIoTWiredDistributionNetVC.m
+++ b/Source/LinkSDKDemo/Core/Controller/Device/TIoTWiredDistributionNetVC.m
@@ -139,7 +139,7 @@ - (void)setupUI {
     self.wifiPasswordString = @"";
     self.tokenString = @"";
     self.portString = @"7838";
-    self.addressIDString = @"239.0.0.255";
+    self.addressIDString = @"";
 }
 
 - (void)initInformation {
diff --git a/Source/SDK/LinkCore/QCDeviceCenter/TIoTCoreAddDevice.m b/Source/SDK/LinkCore/QCDeviceCenter/TIoTCoreAddDevice.m
index 4b7337bcf..127ed0970 100644
--- a/Source/SDK/LinkCore/QCDeviceCenter/TIoTCoreAddDevice.m
+++ b/Source/SDK/LinkCore/QCDeviceCenter/TIoTCoreAddDevice.m
@@ -520,7 +520,7 @@ - (instancetype)initWithPort:(NSString *)port multicastGroupOrHost:(NSString *)a
     self = [super init];
     if (self) {
         self.portString = port?:@"7838"; //需要更改接入端口号
-        self.addressString = address?:@"239.0.0.255"; //需要更改接入IP
+        self.addressString = address?:@""; //需要更改接入IP
     }
     return self;
 }