diff --git a/subsys/bluetooth/controller/ll_sw/lll_conn.h b/subsys/bluetooth/controller/ll_sw/lll_conn.h
index d416ec9a794..7ea0b7874a1 100644
--- a/subsys/bluetooth/controller/ll_sw/lll_conn.h
+++ b/subsys/bluetooth/controller/ll_sw/lll_conn.h
@@ -46,6 +46,7 @@ struct lll_conn {
 	uint8_t data_chan_count:6;
 	uint8_t data_chan_sel:1;
 	uint8_t role:1;
+	uint8_t initiated:1;
 
 	union {
 		struct {
@@ -59,6 +60,7 @@ struct lll_conn {
 #if defined(CONFIG_BT_PERIPHERAL)
 	struct {
 		uint8_t  latency_enabled:1;
+
 		uint32_t window_widening_periodic_us;
 		uint32_t window_widening_max_us;
 		uint32_t window_widening_prepare_us;
diff --git a/subsys/bluetooth/controller/ll_sw/nordic/lll/lll_adv.c b/subsys/bluetooth/controller/ll_sw/nordic/lll/lll_adv.c
index 8bc4ebe7cef..1c173b6bddb 100644
--- a/subsys/bluetooth/controller/ll_sw/nordic/lll/lll_adv.c
+++ b/subsys/bluetooth/controller/ll_sw/nordic/lll/lll_adv.c
@@ -1331,7 +1331,8 @@ static inline int isr_rx_pdu(struct lll_adv *lll,
 		   lll_adv_connect_ind_check(lll, pdu_rx, tx_addr, addr,
 					     rx_addr, tgt_addr,
 					     devmatch_ok, &rl_idx) &&
-		   lll->conn) {
+		   lll->conn &&
+		   !lll->conn->initiated) {
 		struct node_rx_ftr *ftr;
 		struct node_rx_pdu *rx;
 		int ret;
@@ -1366,6 +1367,8 @@ static inline int isr_rx_pdu(struct lll_adv *lll,
 		ret = lll_stop(lll);
 		LL_ASSERT(!ret);
 
+		lll->conn->initiated = 1;
+
 		rx = ull_pdu_rx_alloc();
 
 		rx->hdr.type = NODE_RX_TYPE_CONNECTION;
diff --git a/subsys/bluetooth/controller/ll_sw/nordic/lll/lll_adv_aux.c b/subsys/bluetooth/controller/ll_sw/nordic/lll/lll_adv_aux.c
index 2af0082faa1..821de43c285 100644
--- a/subsys/bluetooth/controller/ll_sw/nordic/lll/lll_adv_aux.c
+++ b/subsys/bluetooth/controller/ll_sw/nordic/lll/lll_adv_aux.c
@@ -25,6 +25,7 @@
 #include "lll_vendor.h"
 #include "lll_clock.h"
 #include "lll_chan.h"
+#include "lll_conn.h"
 #include "lll_adv_types.h"
 #include "lll_adv.h"
 #include "lll_adv_pdu.h"
@@ -56,7 +57,9 @@ static inline int isr_rx_pdu(struct lll_adv_aux *lll_aux,
 			     uint8_t devmatch_ok, uint8_t devmatch_id,
 			     uint8_t irkmatch_ok, uint8_t irkmatch_id,
 			     uint8_t rssi_ready);
+#if defined(CONFIG_BT_PERIPHERAL)
 static void isr_tx_connect_rsp(void *param);
+#endif /* CONFIG_BT_PERIPHERAL */
 
 static struct pdu_adv *init_connect_rsp_pdu(void)
 {
@@ -103,6 +106,7 @@ static struct pdu_adv *init_connect_rsp_pdu(void)
 	return pdu;
 }
 
+#if defined(CONFIG_BT_PERIPHERAL)
 static struct pdu_adv *update_connect_rsp_pdu(struct pdu_adv *pdu_ci)
 {
 	struct pdu_adv_com_ext_adv *cr_com_hdr;
@@ -127,6 +131,7 @@ static struct pdu_adv *update_connect_rsp_pdu(struct pdu_adv *pdu_ci)
 
 	return pdu_cr;
 }
+#endif /* CONFIG_BT_PERIPHERAL */
 
 int lll_adv_aux_init(void)
 {
@@ -487,7 +492,6 @@ static inline int isr_rx_pdu(struct lll_adv_aux *lll_aux,
 	struct pdu_adv *pdu_adv;
 	struct pdu_adv *pdu_aux;
 	struct pdu_adv *pdu_rx;
-	struct pdu_adv *pdu_tx;
 	struct lll_adv *lll;
 	uint8_t *tgt_addr;
 	uint8_t tx_addr;
@@ -566,13 +570,18 @@ static inline int isr_rx_pdu(struct lll_adv_aux *lll_aux,
 					 CONFIG_BT_CTLR_GPIO_PA_OFFSET);
 #endif /* CONFIG_BT_CTLR_GPIO_PA_PIN */
 		return 0;
+
+#if defined(CONFIG_BT_PERIPHERAL)
 	} else if ((pdu_rx->type == PDU_ADV_TYPE_AUX_CONNECT_REQ) &&
 		   (pdu_rx->len == sizeof(struct pdu_adv_connect_ind)) &&
 		   lll_adv_connect_ind_check(lll, pdu_rx, tx_addr, addr,
 					     rx_addr, tgt_addr,
-					     devmatch_ok, &rl_idx)) {
+					     devmatch_ok, &rl_idx) &&
+		   lll->conn &&
+		   !lll->conn->initiated) {
 		struct node_rx_ftr *ftr;
 		struct node_rx_pdu *rx;
+		struct pdu_adv *pdu_tx;
 
 		if (IS_ENABLED(CONFIG_BT_CTLR_CHAN_SEL_2)) {
 			rx = ull_pdu_rx_alloc_peek(4);
@@ -637,11 +646,13 @@ static inline int isr_rx_pdu(struct lll_adv_aux *lll_aux,
 		}
 
 		return 0;
+#endif /* CONFIG_BT_PERIPHERAL */
 	}
 
 	return -EINVAL;
 }
 
+#if defined(CONFIG_BT_PERIPHERAL)
 static void isr_tx_connect_rsp(void *param)
 {
 	struct node_rx_ftr *ftr;
@@ -678,9 +689,12 @@ static void isr_tx_connect_rsp(void *param)
 		/* Stop further LLL radio events */
 		ret = lll_stop(lll);
 		LL_ASSERT(!ret);
+
+		lll->conn->initiated = 1;
 	}
 
 	/* Clear radio status and events */
 	lll_isr_status_reset();
 	lll_isr_cleanup(lll);
 }
+#endif /* CONFIG_BT_PERIPHERAL */
diff --git a/subsys/bluetooth/controller/ll_sw/nordic/lll/lll_scan.c b/subsys/bluetooth/controller/ll_sw/nordic/lll/lll_scan.c
index 2373fa1b963..f9cb53356b3 100644
--- a/subsys/bluetooth/controller/ll_sw/nordic/lll/lll_scan.c
+++ b/subsys/bluetooth/controller/ll_sw/nordic/lll/lll_scan.c
@@ -768,7 +768,7 @@ static inline int isr_rx_pdu(struct lll_scan *lll, struct pdu_adv *pdu_adv_rx,
 	if (0) {
 #if defined(CONFIG_BT_CENTRAL)
 	/* Initiator */
-	} else if ((lll->conn) &&
+	} else if (lll->conn && !lll->conn->initiated &&
 		   isr_scan_init_check(lll, pdu_adv_rx, rl_idx)) {
 		struct lll_conn *lll_conn;
 		struct node_rx_ftr *ftr;
@@ -925,6 +925,8 @@ static inline int isr_rx_pdu(struct lll_scan *lll, struct pdu_adv *pdu_adv_rx,
 		ret = lll_stop(lll);
 		LL_ASSERT(!ret);
 
+		lll->conn->initiated = 1;
+
 		rx = ull_pdu_rx_alloc();
 
 		rx->hdr.type = NODE_RX_TYPE_CONNECTION;
diff --git a/subsys/bluetooth/controller/ll_sw/openisa/lll/lll_adv.c b/subsys/bluetooth/controller/ll_sw/openisa/lll/lll_adv.c
index 4f4c9302d22..cc45b4e1dd5 100644
--- a/subsys/bluetooth/controller/ll_sw/openisa/lll/lll_adv.c
+++ b/subsys/bluetooth/controller/ll_sw/openisa/lll/lll_adv.c
@@ -896,7 +896,8 @@ static inline int isr_rx_pdu(struct lll_adv *lll,
 		   (pdu_rx->len == sizeof(struct pdu_adv_connect_ind)) &&
 		   isr_rx_ci_check(lll, pdu_adv, pdu_rx, devmatch_ok,
 				   &rl_idx) &&
-		   lll->conn) {
+		   lll->conn &&
+		   !lll->conn->initiated) {
 		struct node_rx_ftr *ftr;
 		struct node_rx_pdu *rx;
 		int ret;
@@ -930,6 +931,8 @@ static inline int isr_rx_pdu(struct lll_adv *lll,
 		ret = lll_stop(lll);
 		LL_ASSERT(!ret);
 
+		lll->conn->initiated = 1;
+
 		rx = ull_pdu_rx_alloc();
 
 		rx->hdr.type = NODE_RX_TYPE_CONNECTION;
diff --git a/subsys/bluetooth/controller/ll_sw/openisa/lll/lll_scan.c b/subsys/bluetooth/controller/ll_sw/openisa/lll/lll_scan.c
index 238882b5efc..652d709d0e2 100644
--- a/subsys/bluetooth/controller/ll_sw/openisa/lll/lll_scan.c
+++ b/subsys/bluetooth/controller/ll_sw/openisa/lll/lll_scan.c
@@ -672,7 +672,7 @@ static inline uint32_t isr_rx_pdu(struct lll_scan *lll, uint8_t devmatch_ok,
 	if (0) {
 #if defined(CONFIG_BT_CENTRAL)
 	/* Initiator */
-	} else if ((lll->conn) &&
+	} else if (lll->conn && !lll->conn->initiated &&
 		   isr_scan_init_check(lll, pdu_adv_rx, rl_idx)) {
 		struct lll_conn *lll_conn;
 		struct node_rx_ftr *ftr;
@@ -829,6 +829,8 @@ static inline uint32_t isr_rx_pdu(struct lll_scan *lll, uint8_t devmatch_ok,
 		ret = lll_stop(lll);
 		LL_ASSERT(!ret);
 
+		lll->conn->initiated = 1;
+
 		rx = ull_pdu_rx_alloc();
 
 		rx->hdr.type = NODE_RX_TYPE_CONNECTION;
diff --git a/subsys/bluetooth/controller/ll_sw/ull_adv.c b/subsys/bluetooth/controller/ll_sw/ull_adv.c
index 4088ec6d2ec..5a84190bfe5 100644
--- a/subsys/bluetooth/controller/ll_sw/ull_adv.c
+++ b/subsys/bluetooth/controller/ll_sw/ull_adv.c
@@ -872,6 +872,7 @@ uint8_t ll_adv_enable(uint8_t enable)
 
 		/* FIXME: BEGIN: Move to ULL? */
 		conn_lll->role = 1;
+		conn_lll->initiated = 0;
 		conn_lll->data_chan_sel = 0;
 		conn_lll->data_chan_use = 0;
 		conn_lll->event_counter = 0;
diff --git a/subsys/bluetooth/controller/ll_sw/ull_master.c b/subsys/bluetooth/controller/ll_sw/ull_master.c
index 4c12a2f26dc..94ee0540bbf 100644
--- a/subsys/bluetooth/controller/ll_sw/ull_master.c
+++ b/subsys/bluetooth/controller/ll_sw/ull_master.c
@@ -213,6 +213,7 @@ uint8_t ll_create_connection(uint16_t scan_interval, uint16_t scan_window,
 	conn_lll->data_chan_sel = 0;
 	conn_lll->data_chan_use = 0;
 	conn_lll->role = 0;
+	conn_lll->initiated = 0;
 	/* FIXME: END: Move to ULL? */
 #if defined(CONFIG_BT_CTLR_CONN_META)
 	memset(&conn_lll->conn_meta, 0, sizeof(conn_lll->conn_meta));