Index: firmware/App/Services/SystemComm.c
===================================================================
diff -u -rf58fb877a3b2a7ed117deb950a5598835e7549bb -r5245b978c9960cd064751f86c90c0b35207e1810
--- firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision f58fb877a3b2a7ed117deb950a5598835e7549bb)
+++ firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 5245b978c9960cd064751f86c90c0b35207e1810)
@@ -50,7 +50,7 @@
 #define MAX_COMM_CRC_FAILURE_WINDOW_MS  (10 * SEC_PER_MIN * MS_PER_SECOND)  ///< CRC error window
 
 #define MSG_NOT_ACKED_TIMEOUT_MS        250                                 ///< maximum time for a Denali message that requires ACK to be ACK'd
-#define MSG_NOT_ACKED_MAX_RETRIES       8                                   ///< maximum number of times a message that requires ACK that was not ACK'd can be re-sent before alarm
+#define MSG_NOT_ACKED_MAX_RETRIES       10                                   ///< maximum number of times a message that requires ACK that was not ACK'd can be re-sent before alarm
 #define PENDING_ACK_LIST_SIZE           25                                  ///< maximum number of Delanli messages that can be pending ACK at any given time
 
 #define MAX_FPGA_CLOCK_SPEED_ERRORS             3                           ///< maximum number of FPGA clock speed errors within window period before alarm
@@ -774,13 +774,16 @@
     {
         for ( i = 0; i < PENDING_ACK_LIST_SIZE; i++ )
         {   // pending ACK expired?
-            if ( ( TRUE == pendingAckList[ i ].used ) && ( TRUE == didTimeout( pendingAckList[ i ].timeStamp, MSG_NOT_ACKED_TIMEOUT_MS ) ) )
+            if (( TRUE == pendingAckList[ i ].used ) && ( TRUE == didTimeout( pendingAckList[ i ].timeStamp, MSG_NOT_ACKED_TIMEOUT_MS ) ))
             {   // if retries left, reset and resend pending message. Do not retry when in POST since the UI might not still be responsive
-                if ( ( pendingAckList[ i ].retries > 0 ) && ( getCurrentOperationMode() != DG_MODE_INIT ) )
-                {   // re-queue message for transmit
-                    pendingAckList[ i ].retries--;
-                    pendingAckList[ i ].timeStamp = getMSTimerCount();
-                    addToCommBuffer( pendingAckList[ i ].channel, pendingAckList[ i ].msg, pendingAckList[ i ].msgSize );
+                if ( pendingAckList[ i ].retries > 0 )
+                {
+                    if ( getCurrentOperationMode() != DG_MODE_INIT )
+                    {   // re-queue message for transmit
+                        pendingAckList[ i ].retries--;
+                        pendingAckList[ i ].timeStamp = getMSTimerCount();
+                        addToCommBuffer( pendingAckList[ i ].channel, pendingAckList[ i ].msg, pendingAckList[ i ].msgSize );
+                    }
                 }
                 // if no retries left, alarm
                 else
@@ -794,6 +797,16 @@
             }
         }
     }
+    else
+    {
+        for ( i = 0; i < PENDING_ACK_LIST_SIZE; i++ )
+        {
+            if ( TRUE == pendingAckList[ i ].used )
+            {   // reset timeout for transmit, don't urn up retries when the HD/UI not paying attention.
+                pendingAckList[ i ].timeStamp = getMSTimerCount();
+            }
+        }
+    }
 }
 
 /*********************************************************************//**