Index: firmware/App/Services/SystemComm.c
===================================================================
diff -u -r1c2f96bf994157b11c0c32ddaf96fc91a9a1da1d -r909b961d8b51c01e1582ae0e63f8d540d99057a2
--- firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 1c2f96bf994157b11c0c32ddaf96fc91a9a1da1d)
+++ firmware/App/Services/SystemComm.c	(.../SystemComm.c)	(revision 909b961d8b51c01e1582ae0e63f8d540d99057a2)
@@ -54,7 +54,7 @@
 #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 Delanli messages that can be pending ACK at any given time