diff --git a/WiThrottle.cpp b/WiThrottle.cpp
index e71c1cd..3e712b3 100644
--- a/WiThrottle.cpp
+++ b/WiThrottle.cpp
@@ -187,6 +187,7 @@ void WiThrottle::parse(RingStream * stream, byte * cmdx) {
       }
       break;
     case 'N':  // Heartbeat (2), only send if connection completed by 'HU' message
+      sendIntro(stream);
       StringFormatter::send(stream, F("*%d\n"), heartrateSent ? HEARTBEAT_SECONDS : HEARTBEAT_PRELOAD); // return timeout value
       break;
     case 'M': // multithrottle
@@ -194,7 +195,7 @@ void WiThrottle::parse(RingStream * stream, byte * cmdx) {
       break;
     case 'H': // send initial connection info after receiving "HU" message
       if (cmd[1] == 'U') {    
-      sendIntro(stream);	
+	sendIntro(stream);
       }
       break;           
     case 'Q': // 
@@ -498,12 +499,14 @@ void WiThrottle::getLocoCallback(int16_t locoid) {
 }
 
 void WiThrottle::sendIntro(Print* stream) {
+  if (introSent) // sendIntro only once
+    return;
   introSent=true; 
   StringFormatter::send(stream,F("VN2.0\nHTDCC-EX\nRL0\n"));
-	StringFormatter::send(stream,F("HtDCC-EX v%S, %S, %S, %S\n"), F(VERSION), F(ARDUINO_TYPE), DCC::getMotorShieldName(), F(GITHUB_SHA));
-	StringFormatter::send(stream,F("PTT]\\[Turnouts}|{Turnout]\\[THROW}|{2]\\[CLOSE}|{4\n"));
-	StringFormatter::send(stream,F("PPA%x\n"),TrackManager::getMainPower()==POWERMODE::ON);     
-	// set heartbeat to 2 seconds because we need to sync the metadata (1 second is too short!)
+  StringFormatter::send(stream,F("HtDCC-EX v%S, %S, %S, %S\n"), F(VERSION), F(ARDUINO_TYPE), DCC::getMotorShieldName(), F(GITHUB_SHA));
+  StringFormatter::send(stream,F("PTT]\\[Turnouts}|{Turnout]\\[THROW}|{2]\\[CLOSE}|{4\n"));
+  StringFormatter::send(stream,F("PPA%x\n"),TrackManager::getMainPower()==POWERMODE::ON);
+  // set heartbeat to 2 seconds because we need to sync the metadata (1 second is too short!)
   StringFormatter::send(stream,F("*%d\nHMConnecting..\n"), HEARTBEAT_PRELOAD);
 }