diff --git a/src/ap/ieee802_11.c b/src/ap/ieee802_11.c
index e1a6712..c6234dc 100644
--- a/src/ap/ieee802_11.c
+++ b/src/ap/ieee802_11.c
@@ -2209,6 +2209,7 @@
 {
 	struct ieee80211_ht_capabilities ht_cap;
 	struct ieee80211_vht_capabilities vht_cap;
+	int set = 1;
 
 	/*
 	 * Remove the STA entry to ensure the STA PS state gets cleared and
@@ -2216,9 +2217,18 @@
 	 * FT-over-the-DS, where a station re-associates back to the same AP but
 	 * skips the authentication flow, or if working with a driver that
 	 * does not support full AP client state.
+	 *
+	 * Skip this if the STA has already completed FT reassociation and the
+	 * TK has been configured since the TX/RX PN must not be reset to 0 for
+	 * the same key.
 	 */
-	if (!sta->added_unassoc)
+	if (!sta->added_unassoc &&
+	    (!(sta->flags & WLAN_STA_AUTHORIZED) ||
+	     !wpa_auth_sta_ft_tk_already_set(sta->wpa_sm))) {
 		hostapd_drv_sta_remove(hapd, sta->addr);
+		wpa_auth_sm_event(sta->wpa_sm, WPA_DRV_STA_REMOVED);
+		set = 0;
+	}
 
 #ifdef CONFIG_IEEE80211N
 	if (sta->flags & WLAN_STA_HT)
@@ -2241,11 +2251,11 @@
 			    sta->flags & WLAN_STA_VHT ? &vht_cap : NULL,
 			    sta->flags | WLAN_STA_ASSOC, sta->qosinfo,
 			    sta->vht_opmode, sta->p2p_ie ? 1 : 0,
-			    sta->added_unassoc)) {
+			    set)) {
 		hostapd_logger(hapd, sta->addr,
 			       HOSTAPD_MODULE_IEEE80211, HOSTAPD_LEVEL_NOTICE,
 			       "Could not %s STA to kernel driver",
-			       sta->added_unassoc ? "set" : "add");
+			       set ? "set" : "add");
 
 		if (sta->added_unassoc) {
 			hostapd_drv_sta_remove(hapd, sta->addr);
diff --git a/src/ap/wpa_auth.c b/src/ap/wpa_auth.c
index 7b26c04..71f468b 100644
--- a/src/ap/wpa_auth.c
+++ b/src/ap/wpa_auth.c
@@ -1751,6 +1751,9 @@
 #else /* CONFIG_IEEE80211R_AP */
 		break;
 #endif /* CONFIG_IEEE80211R_AP */
+	case WPA_DRV_STA_REMOVED:
+		sm->tk_already_set = FALSE;
+		return 0;
 	}
 
 #ifdef CONFIG_IEEE80211R_AP
@@ -3734,6 +3737,14 @@
 }
 
 
+int wpa_auth_sta_ft_tk_already_set(struct wpa_state_machine *sm)
+{
+	if (!sm || !wpa_key_mgmt_ft(sm->wpa_key_mgmt))
+		return 0;
+	return sm->tk_already_set;
+}
+
+
 int wpa_auth_sta_clear_pmksa(struct wpa_state_machine *sm,
 			     struct rsn_pmksa_cache_entry *entry)
 {
diff --git a/src/ap/wpa_auth.h b/src/ap/wpa_auth.h
index 0920a16..387d146 100644
--- a/src/ap/wpa_auth.h
+++ b/src/ap/wpa_auth.h
@@ -270,7 +270,7 @@
 		 u8 *data, size_t data_len);
 enum wpa_event {
 	WPA_AUTH, WPA_ASSOC, WPA_DISASSOC, WPA_DEAUTH, WPA_REAUTH,
-	WPA_REAUTH_EAPOL, WPA_ASSOC_FT
+	WPA_REAUTH_EAPOL, WPA_ASSOC_FT, WPA_DRV_STA_REMOVED
 };
 void wpa_remove_ptk(struct wpa_state_machine *sm);
 int wpa_auth_sm_event(struct wpa_state_machine *sm, enum wpa_event event);
@@ -283,6 +283,7 @@
 int wpa_auth_get_pairwise(struct wpa_state_machine *sm);
 int wpa_auth_sta_key_mgmt(struct wpa_state_machine *sm);
 int wpa_auth_sta_wpa_version(struct wpa_state_machine *sm);
+int wpa_auth_sta_ft_tk_already_set(struct wpa_state_machine *sm);
 int wpa_auth_sta_clear_pmksa(struct wpa_state_machine *sm,
 			     struct rsn_pmksa_cache_entry *entry);
 struct rsn_pmksa_cache_entry *
diff --git a/src/ap/wpa_auth_ft.c b/src/ap/wpa_auth_ft.c
index c267a17..210d300 100644
--- a/src/ap/wpa_auth_ft.c
+++ b/src/ap/wpa_auth_ft.c
@@ -797,6 +797,14 @@
 		return;
 	}
 
+	if (sm->tk_already_set) {
+		/* Must avoid TK reconfiguration to prevent clearing of TX/RX
+		 * PN in the driver */
+		wpa_printf(MSG_DEBUG,
+			   "FT: Do not re-install same PTK to the driver");
+		return;
+	}
+
 	/* FIX: add STA entry to kernel/driver here? The set_key will fail
 	 * most likely without this.. At the moment, STA entry is added only
 	 * after association has been completed. This function will be called
@@ -809,6 +817,7 @@
 
 	/* FIX: MLME-SetProtection.Request(TA, Tx_Rx) */
 	sm->pairwise_set = TRUE;
+	sm->tk_already_set = TRUE;
 }
 
 
@@ -1006,6 +1015,7 @@
 
 	sm->pairwise = pairwise;
 	sm->PTK_valid = TRUE;
+	sm->tk_already_set = FALSE;
 	wpa_ft_install_ptk(sm);
 
 	buflen = 2 + sizeof(struct rsn_mdie) + 2 + sizeof(struct rsn_ftie) +
diff --git a/src/ap/wpa_auth_i.h b/src/ap/wpa_auth_i.h
index 90318d8..9564f24 100644
--- a/src/ap/wpa_auth_i.h
+++ b/src/ap/wpa_auth_i.h
@@ -58,6 +58,7 @@
 	struct wpa_ptk PTK;
 	Boolean PTK_valid;
 	Boolean pairwise_set;
+	Boolean tk_already_set;
 	int keycount;
 	Boolean Pair;
 	struct wpa_key_replay_counter {