Index: firmware/App/Services/SystemComm.c
===================================================================
diff -u -r46617afb446c35270b59e21085b270433d13d113 -r9b831d8407ad2ac737a58f369455074306d5097a
--- firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 46617afb446c35270b59e21085b270433d13d113)
+++ firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 9b831d8407ad2ac737a58f369455074306d5097a)
@@ -55,7 +55,7 @@
 #define MAX_COMM_CRC_FAILURES           5       ///< Maximum number of CRC errors within window period before alarm
 #define MAX_COMM_CRC_FAILURE_WINDOW_MS  (10 * SEC_PER_MIN * MS_PER_SECOND)  ///< CRC error window
 
-#define MSG_NOT_ACKED_TIMEOUT_MS        300     ///< Maximum time for a Denali message that requires ACK to be ACK'd
+#define MSG_NOT_ACKED_TIMEOUT_MS        150     ///< Maximum time for a Denali message that requires ACK to be ACK'd
 #define MSG_NOT_ACKED_MAX_RETRIES       3       ///< 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 Denali messages that can be pending ACK at any given time