diff --git a/DCC.cpp b/DCC.cpp
index badb6e6..f3cba2f 100644
--- a/DCC.cpp
+++ b/DCC.cpp
@@ -193,38 +193,15 @@ void DCC::setFn( int cab, int16_t functionNumber, bool on) {
   }
 }
 
-// Change function according to how button was pressed,
-// typically in WiThrottle.
-// Returns new state or -1 if nothing was changed.
-int DCC::changeFn( int cab, int16_t functionNumber, bool pressed) {
-  int funcstate = -1;
-  if (cab<=0 || functionNumber>28) return funcstate;
+// Flip function state
+void DCC::changeFn( int cab, int16_t functionNumber) {
+  if (cab<=0 || functionNumber>28) return;
   int reg = lookupSpeedTable(cab);
-  if (reg<0) return funcstate;  
-
-  // Take care of functions:
-  // Imitate how many command stations do it: Button press is
-  // toggle but for F2 where it is momentary
+  if (reg<0) return;  
   unsigned long funcmask = (1UL<<functionNumber);
-  if (functionNumber == 2) {
-      // turn on F2 on press and off again at release of button
-      if (pressed) {
-	  speedTable[reg].functions |= funcmask;
-	  funcstate = 1;
-      } else {
-	  speedTable[reg].functions &= ~funcmask;
-	  funcstate = 0;
-      }
-  } else {
-      // toggle function on press, ignore release
-      if (pressed) {
-        speedTable[reg].functions ^= funcmask;
-      }
-      funcstate = (speedTable[reg].functions & funcmask)? 1 : 0;
-  }
-  updateGroupflags(speedTable[reg].groupFlags, functionNumber);
+  speedTable[reg].functions ^= funcmask;
+	updateGroupflags(speedTable[reg].groupFlags, functionNumber);
   CommandDistributor::broadcastLoco(reg);
-  return funcstate;
 }
 
 int DCC::getFn( int cab, int16_t functionNumber) {
@@ -700,7 +677,7 @@ void  DCC::updateLocoReminder(int loco, byte speedCode) {
   
   // determine speed reg for this loco
   int reg=lookupSpeedTable(loco);       
-  if (reg>=0) {
+  if (reg>=0 && speedTable[reg].speedCode!=speedCode) {
     speedTable[reg].speedCode = speedCode;
     CommandDistributor::broadcastLoco(reg);
   }
diff --git a/DCC.h b/DCC.h
index 0b02b5b..c45a658 100644
--- a/DCC.h
+++ b/DCC.h
@@ -99,7 +99,7 @@ public:
   static void writeCVBitMain(int cab, int cv, byte bNum, bool bValue);
   static void setFunction(int cab, byte fByte, byte eByte);
   static void setFn(int cab, int16_t functionNumber, bool on);
-  static int changeFn(int cab, int16_t functionNumber, bool pressed);
+  static void changeFn(int cab, int16_t functionNumber);
   static int  getFn(int cab, int16_t functionNumber);
   static uint32_t getFunctionMap(int cab);
   static void updateGroupflags(byte &flags, int16_t functionNumber);
diff --git a/WiThrottle.cpp b/WiThrottle.cpp
index f799d4b..3d6700e 100644
--- a/WiThrottle.cpp
+++ b/WiThrottle.cpp
@@ -310,6 +310,7 @@ void WiThrottle::multithrottle(RingStream * stream, byte * cmd){
 void WiThrottle::locoAction(RingStream * stream, byte* aval, char throttleChar, int cab){
     // Note cab=-1 for all cabs in the consist called throttleChar.  
 //    DIAG(F("Loco Action aval=%c%c throttleChar=%c, cab=%d"), aval[0],aval[1],throttleChar, cab);
+     (void) stream;
      switch (aval[0]) {
            case 'V':  // Vspeed
              { 
@@ -317,23 +318,21 @@ void WiThrottle::locoAction(RingStream * stream, byte* aval, char throttleChar,
               LOOPLOCOS(throttleChar, cab) {
                 mostRecentCab=myLocos[loco].cab;
                 DCC::setThrottle(myLocos[loco].cab, WiTToDCCSpeed(witSpeed), DCC::getThrottleDirection(myLocos[loco].cab));
-                StringFormatter::send(stream,F("M%cA%c%d<;>V%d\n"), throttleChar, LorS(myLocos[loco].cab), myLocos[loco].cab, witSpeed);
+                // SetThrottle will cause speed change broadcast
                 }
              } 
             break;
-           case 'F': //F onOff function
-              {
-		            bool funcstate;
+           case 'F': // Function key pressed/released
+              {  
                 bool pressed=aval[1]=='1';
                 int fKey = getInt(aval+2);
+                if (fKey!=2 && !pressed) break; // ignore releases except key 2 
                 LOOPLOCOS(throttleChar, cab) {
-		              funcstate = DCC::changeFn(myLocos[loco].cab, fKey, pressed);
-		              if(funcstate==0 || funcstate==1)
-			              StringFormatter::send(stream,F("M%cA%c%d<;>F%d%d\n"), throttleChar, LorS(myLocos[loco].cab), 
-						          myLocos[loco].cab, funcstate, fKey);
-		              }
+                  if (fKey==2) DCC::setFn(myLocos[loco].cab,fKey, pressed);
+                  else  DCC::changeFn(myLocos[loco].cab, fKey);
                 }
                 break;  
+              }
             case 'q':
                 if (aval[1]=='V' || aval[1]=='R' ) {   //qV or qR
                   // just flag the loco for broadcast and it will happen.
diff --git a/WiThrottle.h b/WiThrottle.h
index 0e1f525..5e2faeb 100644
--- a/WiThrottle.h
+++ b/WiThrottle.h
@@ -40,8 +40,8 @@ class WiThrottle {
     ~WiThrottle();
    
       static const int MAX_MY_LOCO=10;      // maximum number of locos assigned to a single client
-      static const int HEARTBEAT_SECONDS=4; // heartbeat at 4secs to provide messaging transport
-      static const int ESTOP_SECONDS=8;     // eStop if no incoming messages for more than 8secs
+      static const int HEARTBEAT_SECONDS=10; // heartbeat at 4secs to provide messaging transport
+      static const int ESTOP_SECONDS=20;     // eStop if no incoming messages for more than 8secs
       static WiThrottle* firstThrottle;
       static int getInt(byte * cmd);
       static int getLocoId(byte * cmd);