diff --git a/YAServerDlg.cpp b/YAServerDlg.cpp
index b3b837a..3444397 100644
--- a/YAServerDlg.cpp
+++ b/YAServerDlg.cpp
@@ -12868,6 +12868,10 @@ void CYAServerDlg::parse_data_server( const BYTE * pData, int nLen, CONNID dwCon
 				LOCATION_SYSTEM_BRANCH(LOCATION_SYSTEM_BRANCH_98);
 				send_tcp_thread_message(data);
 			}
+			else
+			{
+				LOCATION_SYSTEM_BRANCH(LOCATION_SYSTEM_BRANCH_273);
+			}
 			read_length += pkg_len;
 		}
 
@@ -16526,13 +16530,13 @@ void CYAServerDlg::change_monkeycar_index()
 				card->m_MonkeyCarIndex++;
 				if (card->m_MonkeyCarIndex >= card->getPointSize())
 				{
-					card->m_MonkeyCarIndex = card->getPointSize();
+					card->m_MonkeyCarIndex = card->getPointSize()-1;
 				}
 			}
 			else if(POSTIVE_DIRECTION == card->m_direction)
 			{
 				card->m_MonkeyCarIndex--;
-				if (card->m_MonkeyCarIndex == 0)
+				if (card->m_MonkeyCarIndex <= 0)
 				{
 					card->m_MonkeyCarIndex = 0;
 				}
diff --git a/system_basic_info/SystemAnalysis.h b/system_basic_info/SystemAnalysis.h
index 8b56e69..8e28b72 100644
--- a/system_basic_info/SystemAnalysis.h
+++ b/system_basic_info/SystemAnalysis.h
@@ -278,7 +278,7 @@ typedef enum StationSyncBasicBranch
 	LOCATION_SYSTEM_BRANCH_270,       //used
 	LOCATION_SYSTEM_BRANCH_271,		  //used
 	LOCATION_SYSTEM_BRANCH_272,	      //used
-	LOCATION_SYSTEM_BRANCH_273,
+	LOCATION_SYSTEM_BRANCH_273,       //used
 	LOCATION_SYSTEM_BRANCH_274,
 	LOCATION_SYSTEM_BRANCH_275,
 	LOCATION_SYSTEM_BRANCH_276,