diff -Naur hostap_2_11.orig/hostapd/config_file.c hostap_2_11/hostapd/config_file.c
--- hostap_2_11.orig/hostapd/config_file.c	2024-07-20 20:04:37.000000000 +0200
+++ hostap_2_11/hostapd/config_file.c	2024-08-06 12:55:53.750009117 +0200
@@ -3678,6 +3678,10 @@
 		if (bss->ocv && !bss->ieee80211w)
 			bss->ieee80211w = 1;
 #endif /* CONFIG_OCV */
+	} else if (os_strcmp(buf, "noscan") == 0) {
+		conf->noscan = atoi(pos);
+	} else if (os_strcmp(buf, "ht_coex") == 0) {
+		conf->no_ht_coex = !atoi(pos);
 	} else if (os_strcmp(buf, "ieee80211n") == 0) {
 		conf->ieee80211n = atoi(pos);
 	} else if (os_strcmp(buf, "ht_capab") == 0) {
diff -Naur hostap_2_11.orig/src/ap/ap_config.h hostap_2_11/src/ap/ap_config.h
--- hostap_2_11.orig/src/ap/ap_config.h	2024-07-20 20:04:37.000000000 +0200
+++ hostap_2_11/src/ap/ap_config.h	2024-08-06 12:57:06.779631503 +0200
@@ -1108,6 +1108,8 @@
 
 	int ht_op_mode_fixed;
 	u16 ht_capab;
+	int noscan;
+	int no_ht_coex;
 	int ieee80211n;
 	int secondary_channel;
 	int no_pri_sec_switch;
diff -Naur hostap_2_11.orig/src/ap/hw_features.c hostap_2_11/src/ap/hw_features.c
--- hostap_2_11.orig/src/ap/hw_features.c	2024-07-20 20:04:37.000000000 +0200
+++ hostap_2_11/src/ap/hw_features.c	2024-08-06 12:58:29.122962573 +0200
@@ -551,7 +551,8 @@
 	int ret;
 
 	/* Check that HT40 is used and PRI / SEC switch is allowed */
-	if (!iface->conf->secondary_channel || iface->conf->no_pri_sec_switch)
+	if (!iface->conf->secondary_channel || iface->conf->no_pri_sec_switch ||
+		iface->conf->noscan)
 		return 0;
 
 	hostapd_set_state(iface, HAPD_IFACE_HT_SCAN);
diff -Naur hostap_2_11.orig/src/ap/ieee802_11_ht.c hostap_2_11/src/ap/ieee802_11_ht.c
--- hostap_2_11.orig/src/ap/ieee802_11_ht.c	2024-07-20 20:04:37.000000000 +0200
+++ hostap_2_11/src/ap/ieee802_11_ht.c	2024-08-06 13:00:31.237899938 +0200
@@ -230,6 +230,9 @@
 		return;
 	}
 
+	if (iface->conf->noscan || iface->conf->no_ht_coex)
+		return;
+
 	if (len < IEEE80211_HDRLEN + 2 + sizeof(*bc_ie)) {
 		wpa_printf(MSG_DEBUG,
 			   "Ignore too short 20/40 BSS Coexistence Management frame");
@@ -390,6 +393,9 @@
 	if (iface->current_mode->mode != HOSTAPD_MODE_IEEE80211G)
 		return;
 
+	if (iface->conf->noscan || iface->conf->no_ht_coex)
+		return;
+
 	wpa_printf(MSG_INFO, "HT: Forty MHz Intolerant is set by STA " MACSTR
 		   " in Association Request", MAC2STR(sta->addr));