diff --git a/src/cmdu_ackq.c b/src/cmdu_ackq.c
index 30d233f31223b81f0d403ec6c9b4c46e3abaa067..92e1abab02a6b823fd0427486a9902e9a1482efa 100644
--- a/src/cmdu_ackq.c
+++ b/src/cmdu_ackq.c
@@ -88,8 +88,9 @@ struct cmdu_ackq_entry *cmdu_ackq_create_msg(uint16_t type, uint16_t mid,
 	memcpy(msg->origin, dest, 6);
 	msg->resend_cnt = resend_cnt;
 	msg->cookie = cookie;
-	dbg("    CREATE msg: type = 0x%04x  mid = %hu origin = " MACFMT " timeout = { %u ms (%lu:%lu) }\n",
+	dbg("    CREATE msg: type = 0x%04x  mid = %hu origin = " MACFMT " timeout = { %u ms (now = %lu.%lu, when = %lu.%lu) }\n",
 		type, mid, MAC2STR(dest), msg->ageing_time,
+		tsp.tv_sec, tsp.tv_usec / 1000,
 		msg->ageing_tmo.tv_sec, msg->ageing_tmo.tv_usec / 1000);
 
 	return msg;
@@ -124,13 +125,13 @@ static void cmdu_ackq_ageout_entry(struct cmdu_ackq *st, struct hlist_head *head
 		int action = CMDU_ACKQ_TMO_NONE;
 		struct timeval new_next_tmo = { 0 };
 
-		loud("%s(): check entry msg->ageout? (%lu.%lu), now = (%lu.%lu)\n",
+		dbg("%s(): check entry msg->ageout? (when = %lu.%lu), now = (%lu.%lu)\n",
 		     __func__, msg->ageing_tmo.tv_sec, msg->ageing_tmo.tv_usec,
 		     now.tv_sec, now.tv_usec);
 
 		if (!timercmp(&msg->ageing_tmo, &now, >)) {
-			dbg("No response from " MACFMT " with CMDU 0x%x mid = %hu\n",
-				MAC2STR(msg->origin), msg->type, msg->mid);
+			dbg("%s(): No response from " MACFMT " with CMDU 0x%x mid = %hu\n",
+			       __func__, MAC2STR(msg->origin), msg->type, msg->mid);
 
 			if (st->timeout_cb) {
 				action = st->timeout_cb(st, msg);
@@ -149,6 +150,8 @@ static void cmdu_ackq_ageout_entry(struct cmdu_ackq *st, struct hlist_head *head
 		case CMDU_ACKQ_TMO_DELETE:
 			st->pending_cnt--;
 			hlist_del(&msg->hlist, head);
+			dbg("DEQ: type = 0x%04x  mid = %hu origin = " MACFMT " (reason: timeout)\n",
+			    msg->type, msg->mid, MAC2STR(msg->origin));
 			cmdu_ackq_delete_msg(st, msg);
 			break;
 		case CMDU_ACKQ_TMO_REARM:
@@ -188,18 +191,19 @@ static void cmdu_ackq_ageing_timer_run(atimer_t *t)
 	}
 
 	remain_cnt = st->pending_cnt;
-	st->next_tmo.tv_sec = min_next_tmo.tv_sec;
-	st->next_tmo.tv_usec = min_next_tmo.tv_usec;
+	timeradd(&nu, &min_next_tmo, &st->next_tmo);
 
-	loud("\n ----Next timer adjusted ---- next_tmo = %lu.%lu,  msg-cnt = %d\n",
-	     st->next_tmo.tv_sec, st->next_tmo.tv_usec, remain_cnt);
+	dbg("\n ----Next timer ---- when = %lu.%lu, after = %lu.%lu,  msg-cnt = %d\n",
+	       st->next_tmo.tv_sec, st->next_tmo.tv_usec,
+	       min_next_tmo.tv_sec, min_next_tmo.tv_usec,
+	       remain_cnt);
 
 	if (remain_cnt) {
 		uint32_t tmo_msecs =
-			st->next_tmo.tv_sec * 1000 + st->next_tmo.tv_usec / 1000;
+			min_next_tmo.tv_sec * 1000 + min_next_tmo.tv_usec / 1000;
 
 		if (tmo_msecs > 0) {
-			loud("Set timer after %u ms, msg-cnt = %d\n", tmo_msecs, remain_cnt);
+			dbg(" ----Next timer set after %u ms, msg-cnt = %d\n", tmo_msecs, remain_cnt);
 			timer_set(&st->ageing_timer, tmo_msecs);
 		}
 	}
@@ -325,8 +329,8 @@ int cmdu_ackq_dequeue(void *cmdu_q, uint16_t type, uint16_t mid, uint8_t *src, v
 	hlist_del(&msg->hlist, &q->table[idx]);
 	q->pending_cnt--;
 
-	dbg("DEQ: type = 0x%04x  mid = %hu origin = " MACFMT "\n",
-	     type, mid, MAC2STR(src));
+	dbg("DEQ: type = 0x%04x  mid = %hu origin = " MACFMT " (reason: response)\n",
+	    type, mid, MAC2STR(src));
 
 
 	/* After returning cookie back to user, we can safely delete the msg */