diff --git a/RPi_rflink/RFlink b/RPi_rflink/RFlink
index 3bf8cf3..04f3253 100755
Binary files a/RPi_rflink/RFlink and b/RPi_rflink/RFlink differ
diff --git a/RPi_rflink/server.cpp b/RPi_rflink/server.cpp
index 39a9114..a01134e 100644
--- a/RPi_rflink/server.cpp
+++ b/RPi_rflink/server.cpp
@@ -47,6 +47,8 @@ int socket_send(const char* buf, const int size)
 		clientSocket=-1;
 		Serial.set_send_function(NULL); // disable Serial.println send line by socket = disable this function
 		log(LOG_ERROR,"TCP server: Problem send data.");
+		log(LOG_ERROR,"TCP server: Connection close.");
+		close(clientSocket);
 	}
 	return ret;
 }
diff --git a/RPi_rflink/server.o b/RPi_rflink/server.o
index 211b1ec..8ef079d 100644
Binary files a/RPi_rflink/server.o and b/RPi_rflink/server.o differ