diff --git a/core/rtw_ap.c b/core/rtw_ap.c
index dda3961..9cc2cee 100755
--- a/core/rtw_ap.c
+++ b/core/rtw_ap.c
@@ -309,25 +309,10 @@ void rtw_remove_bcn_ie(struct adapter *padapter, WLAN_BSSID_EX *pnetwork, u8 ind
 	pnetwork->IELength = offset + remainder_ielen;
 }
 
-
-u8 chk_sta_is_alive(struct sta_info *psta);
 u8 chk_sta_is_alive(struct sta_info *psta)
 {
 	u8 ret = false;
-	#ifdef DBG_EXPIRATION_CHK
-	DBG_871X("sta:"MAC_FMT", rssi:%d, rx:"STA_PKTS_FMT", expire_to:%u, %s%ssq_len:%u\n"
-		, MAC_ARG(psta->hwaddr)
-		, psta->rssi_stat.UndecoratedSmoothedPWDB
-		/*  STA_RX_PKTS_ARG(psta) */
-		, STA_RX_PKTS_DIFF_ARG(psta)
-		, psta->expire_to
-		, psta->state&WIFI_SLEEP_STATE?"PS, ":""
-		, psta->state&WIFI_STA_ALIVE_CHK_STATE?"SAC, ":""
-		, psta->sleepq_len
-	);
-	#endif
 
-	/* if(sta_last_rx_pkts(psta) == sta_rx_pkts(psta)) */
 	if((psta->sta_stats.last_rx_data_pkts + psta->sta_stats.last_rx_ctrl_pkts) == (psta->sta_stats.rx_data_pkts + psta->sta_stats.rx_ctrl_pkts))
 	{
 	}
@@ -358,12 +343,6 @@ void	expire_timeout_chk(struct adapter *padapter)
 	plist = get_next(phead);
 
 	/* check auth_queue */
-	#ifdef DBG_EXPIRATION_CHK
-	if (rtw_end_of_queue_search(phead, plist) == false) {
-		DBG_871X(FUNC_NDEV_FMT" auth_list, cnt:%u\n"
-			, FUNC_NDEV_ARG(padapter->pnetdev), pstapriv->auth_list_cnt);
-	}
-	#endif
 	while ((rtw_end_of_queue_search(phead, plist)) == false)
 	{
 		psta = LIST_CONTAINOR(plist, struct sta_info, auth_list);
@@ -403,12 +382,6 @@ void	expire_timeout_chk(struct adapter *padapter)
 	plist = get_next(phead);
 
 	/* check asoc_queue */
-	#ifdef DBG_EXPIRATION_CHK
-	if (rtw_end_of_queue_search(phead, plist) == false) {
-		DBG_871X(FUNC_NDEV_FMT" asoc_list, cnt:%u\n"
-			, FUNC_NDEV_ARG(padapter->pnetdev), pstapriv->asoc_list_cnt);
-	}
-	#endif
 	while ((rtw_end_of_queue_search(phead, plist)) == false)
 	{
 		psta = LIST_CONTAINOR(plist, struct sta_info, asoc_list);
diff --git a/core/rtw_mlme_ext.c b/core/rtw_mlme_ext.c
index 0785831..7b7023e 100755
--- a/core/rtw_mlme_ext.c
+++ b/core/rtw_mlme_ext.c
@@ -9575,27 +9575,6 @@ static u8 chk_ap_is_alive(struct adapter *padapter, struct sta_info *psta)
 	struct mlme_ext_priv	*pmlmeext = &padapter->mlmeextpriv;
 	struct mlme_ext_info	*pmlmeinfo = &(pmlmeext->mlmext_info);
 
-	#ifdef DBG_EXPIRATION_CHK
-	DBG_871X(FUNC_ADPT_FMT" rx:"STA_PKTS_FMT", beacon:%llu, probersp_to_self:%llu"
-				/*", probersp_bm:%llu, probersp_uo:%llu, probereq:%llu, BI:%u"*/
-				", retry:%u\n"
-		, FUNC_ADPT_ARG(padapter)
-		, STA_RX_PKTS_DIFF_ARG(psta)
-		, psta->sta_stats.rx_beacon_pkts - psta->sta_stats.last_rx_beacon_pkts
-		, psta->sta_stats.rx_probersp_pkts - psta->sta_stats.last_rx_probersp_pkts
-		/*, psta->sta_stats.rx_probersp_bm_pkts - psta->sta_stats.last_rx_probersp_bm_pkts
-		, psta->sta_stats.rx_probersp_uo_pkts - psta->sta_stats.last_rx_probersp_uo_pkts
-		, psta->sta_stats.rx_probereq_pkts - psta->sta_stats.last_rx_probereq_pkts
-		, pmlmeinfo->bcn_interval*/
-		, pmlmeext->retry
-	);
-
-	DBG_871X(FUNC_ADPT_FMT" tx_pkts:%llu, link_count:%u\n", FUNC_ADPT_ARG(padapter)
-		, padapter->xmitpriv.tx_pkts
-		, pmlmeinfo->link_count
-	);
-	#endif
-
 	if((sta_rx_data_pkts(psta) == sta_last_rx_data_pkts(psta))
 		&& sta_rx_beacon_pkts(psta) == sta_last_rx_beacon_pkts(psta)
 		&& sta_rx_probersp_pkts(psta) == sta_last_rx_probersp_pkts(psta)
@@ -9679,9 +9658,6 @@ void linked_status_chk(struct adapter *padapter)
 			} else {
 				if (rx_chk != _SUCCESS) {
 					if (pmlmeext->retry == 0) {
-						#ifdef DBG_EXPIRATION_CHK
-						DBG_871X("issue_probereq to trigger probersp, retry=%d\n", pmlmeext->retry);
-						#endif
 						issue_probereq(padapter, &pmlmeinfo->network.Ssid, pmlmeinfo->network.MacAddress);
 						issue_probereq(padapter, &pmlmeinfo->network.Ssid, pmlmeinfo->network.MacAddress);
 						issue_probereq(padapter, &pmlmeinfo->network.Ssid, pmlmeinfo->network.MacAddress);
@@ -9689,9 +9665,6 @@ void linked_status_chk(struct adapter *padapter)
 				}
 
 				if (tx_chk != _SUCCESS && pmlmeinfo->link_count++ == 0xf) {
-					#ifdef DBG_EXPIRATION_CHK
-					DBG_871X("%s issue_nulldata 0\n", __FUNCTION__);
-					#endif
 					tx_chk = issue_nulldata(padapter, NULL, 0, 1, 0);
 				}
 			}