diff --git a/TSCP/src/APP/APP_API.c b/TSCP/src/APP/APP_API.c
index 7ad9bd3..22c7b48 100644
--- a/TSCP/src/APP/APP_API.c
+++ b/TSCP/src/APP/APP_API.c
@@ -589,7 +589,7 @@ ENUM_CM_RETURN APP_API_MainFunc(void)
 
 	//gFollowDataLen = GetCiAppData(gFollowData);
 	memset(gFollowData,0x00,1024*1500);
-	MSCP_SetFollowData(gFollowData, 1024*1500);
+	MSCP_SetFollowData(gFollowData, 1024*1500 - 1);
 
 	return retVal;
 }
diff --git a/TSCP/src/MSCP/CM/CM_UDP.c b/TSCP/src/MSCP/CM/CM_UDP.c
index 83c4359..eb06e8a 100644
--- a/TSCP/src/MSCP/CM/CM_UDP.c
+++ b/TSCP/src/MSCP/CM/CM_UDP.c
@@ -180,6 +180,7 @@ ENUM_CM_RETURN CM_UDP_Socket_Create(OUT CM_SOCKET* pSock, IN CM_BOOL isNonBlockM
     ENUM_CM_RETURN retError = ENUM_CM_FALSE; /* 临时返回值 */
     struct ip_mreq multiCast;         /* 组播配置 */           
     CM_INT32 bCast = 1;
+    u_char loop;    /* 0 = disable, 1 = enable (default) */
     /*- 是否UDP服务未初始化或输入非法 */
     if ((CM_TRUE != s_UDP_Initialized) || (NULL == pSock))
     {
@@ -209,6 +210,8 @@ ENUM_CM_RETURN CM_UDP_Socket_Create(OUT CM_SOCKET* pSock, IN CM_BOOL isNonBlockM
 					/*组播发送*/
 					addrHost.sin_addr.s_addr = addrIP;
 					(void)setsockopt(*pSock, IPPROTO_IP, IP_MULTICAST_IF, &addrHost.sin_addr, sizeof(addrHost.sin_addr));
+                    loop = 0;
+                    (void)setsockopt(*pSock, IPPROTO_IP, IP_MULTICAST_LOOP, &loop, sizeof(loop));
 					break;
 				case ENUM_MULTICAST_RCV:
 					/*组播接收*/
diff --git a/TSCP/src/MSCP/MSCP_main.c b/TSCP/src/MSCP/MSCP_main.c
index 583b6cc..526f08e 100644
--- a/TSCP/src/MSCP/MSCP_main.c
+++ b/TSCP/src/MSCP/MSCP_main.c
@@ -630,7 +630,7 @@ static void SelfCheckInit(void)
 {
 #ifdef QNX
     /*- 文件自检初始化 */
-    PFM_FileInit();
+    //PFM_FileInit();
 	/*- 内存自检初始化*/
     PFM_MemCheck_Init();
 	/*- CPU自检初始化*/
diff --git a/TSCP/src/MSCP/SFM/SFM_2x2.c b/TSCP/src/MSCP/SFM/SFM_2x2.c
index 3d10d15..d05b1d1 100644
--- a/TSCP/src/MSCP/SFM/SFM_2x2.c
+++ b/TSCP/src/MSCP/SFM/SFM_2x2.c
@@ -133,6 +133,7 @@ static void SFM_2x2_Eth422StateDark(void);
 // 主要实现函数
 void save_to_file(const char *format, ...)
 {
+	return;
     FILE *fp = NULL;
     va_list args;
     int result = 0;