diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index a6f4c74..0929f31 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -801,7 +801,10 @@
 	    !(info->flags & IEEE80211_TX_STAT_AMPDU))
 		return;
 
-	retries = info->status.rates[0].count - 1;
+	if (info->flags & IEEE80211_TX_STAT_AMPDU)
+		retries = 0;
+	else
+		retries = info->status.rates[0].count - 1;
 
 	if (retries > 15)
 		retries = 15;
@@ -1897,7 +1900,7 @@
 		if (high != IWL_RATE_INVALID && sr >= IWL_RATE_INCREASE_TH)
 			scale_action = 1;
 		else if (low != IWL_RATE_INVALID)
-			scale_action = -1;
+			scale_action = 0;
 	}
 
 	/* Both adjacent throughputs are measured, but neither one has better
@@ -1918,9 +1921,7 @@
 					sr >= IWL_RATE_INCREASE_TH) {
 				scale_action = 1;
 			} else {
-				IWL_DEBUG_RATE(priv,
-				    "decrease rate because of high tpt\n");
-				scale_action = -1;
+				scale_action = 0;
 			}
 
 		/* Lower adjacent rate's throughput is measured */
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.h b/drivers/net/wireless/iwlwifi/iwl-agn-rs.h
index 345806d..ab59acc 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.h
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.h
@@ -231,7 +231,7 @@
 #define IWL_RS_GOOD_RATIO		12800	/* 100% */
 #define IWL_RATE_SCALE_SWITCH		10880	/*  85% */
 #define IWL_RATE_HIGH_TH		10880	/*  85% */
-#define IWL_RATE_INCREASE_TH            8960	/*  70% */
+#define IWL_RATE_INCREASE_TH		6400	/*  50% */
 #define IWL_RATE_DECREASE_TH		1920	/*  15% */
 
 /* possible actions when in legacy mode */