diff --git a/subsys/bluetooth/mesh/pb_adv.c b/subsys/bluetooth/mesh/pb_adv.c
index 24e9d08d539..27d55763298 100644
--- a/subsys/bluetooth/mesh/pb_adv.c
+++ b/subsys/bluetooth/mesh/pb_adv.c
@@ -282,7 +282,7 @@ static void prov_failed(uint8_t err)
 
 static void prov_msg_recv(void)
 {
-	k_work_reschedule(&link.prot_timer, PROTOCOL_TIMEOUT);
+	k_work_reschedule(&link.prot_timer, bt_mesh_prov_protocol_timeout_get());
 
 	if (!bt_mesh_fcs_check(link.rx.buf, link.rx.fcs)) {
 		LOG_ERR("Incorrect FCS");
@@ -654,7 +654,7 @@ static int bearer_ctl_send(struct net_buf *buf)
 	}
 
 	prov_clear_tx();
-	k_work_reschedule(&link.prot_timer, PROTOCOL_TIMEOUT);
+	k_work_reschedule(&link.prot_timer, bt_mesh_prov_protocol_timeout_get());
 
 	link.tx.start = k_uptime_get();
 	link.tx.buf[0] = buf;
@@ -670,7 +670,7 @@ static int bearer_ctl_send_unacked(struct net_buf *buf, void *user_data)
 	}
 
 	prov_clear_tx();
-	k_work_reschedule(&link.prot_timer, PROTOCOL_TIMEOUT);
+	k_work_reschedule(&link.prot_timer, bt_mesh_prov_protocol_timeout_get());
 
 	bt_mesh_adv_send(buf, &buf_sent_cb, user_data);
 	net_buf_unref(buf);
@@ -685,7 +685,7 @@ static int prov_send_adv(struct net_buf_simple *msg,
 	uint8_t seg_len, seg_id;
 
 	prov_clear_tx();
-	k_work_reschedule(&link.prot_timer, PROTOCOL_TIMEOUT);
+	k_work_reschedule(&link.prot_timer, bt_mesh_prov_protocol_timeout_get());
 
 	start = adv_buf_create(RETRANSMITS_RELIABLE);
 	if (!start) {
diff --git a/subsys/bluetooth/mesh/pb_gatt.c b/subsys/bluetooth/mesh/pb_gatt.c
index 90562324568..f8acc8f6c5a 100644
--- a/subsys/bluetooth/mesh/pb_gatt.c
+++ b/subsys/bluetooth/mesh/pb_gatt.c
@@ -95,7 +95,7 @@ int bt_mesh_pb_gatt_recv(struct bt_conn *conn, struct net_buf_simple *buf)
 		return -EINVAL;
 	}
 
-	k_work_reschedule(&link.prot_timer, PROTOCOL_TIMEOUT);
+	k_work_reschedule(&link.prot_timer, bt_mesh_prov_protocol_timeout_get());
 
 	link.cb->recv(&bt_mesh_pb_gatt, link.cb_data, buf);
 
@@ -111,7 +111,7 @@ int bt_mesh_pb_gatt_start(struct bt_conn *conn)
 	}
 
 	link.conn = bt_conn_ref(conn);
-	k_work_reschedule(&link.prot_timer, PROTOCOL_TIMEOUT);
+	k_work_reschedule(&link.prot_timer, bt_mesh_prov_protocol_timeout_get());
 
 	link.cb->link_opened(&bt_mesh_pb_gatt, link.cb_data);
 
@@ -142,7 +142,7 @@ int bt_mesh_pb_gatt_cli_start(struct bt_conn *conn)
 	}
 
 	link.conn = bt_conn_ref(conn);
-	k_work_reschedule(&link.prot_timer, PROTOCOL_TIMEOUT);
+	k_work_reschedule(&link.prot_timer, bt_mesh_prov_protocol_timeout_get());
 
 	return 0;
 }
@@ -218,7 +218,7 @@ static int buf_send(struct net_buf_simple *buf, prov_bearer_send_complete_t cb,
 	link.comp.cb = cb;
 	link.comp.cb_data = cb_data;
 
-	k_work_reschedule(&link.prot_timer, PROTOCOL_TIMEOUT);
+	k_work_reschedule(&link.prot_timer, bt_mesh_prov_protocol_timeout_get());
 
 	return bt_mesh_proxy_msg_send(link.conn, BT_MESH_PROXY_PROV,
 				      buf, buf_send_end, NULL);
diff --git a/subsys/bluetooth/mesh/prov.c b/subsys/bluetooth/mesh/prov.c
index f21a7852f48..f44fffde649 100644
--- a/subsys/bluetooth/mesh/prov.c
+++ b/subsys/bluetooth/mesh/prov.c
@@ -38,7 +38,7 @@ BUILD_ASSERT(sizeof(bt_mesh_prov_link.conf_inputs) == 145,
 int bt_mesh_prov_reset_state(void)
 {
 	int err;
-	const size_t offset = offsetof(struct bt_mesh_prov_link, auth);
+	const size_t offset = offsetof(struct bt_mesh_prov_link, addr);
 
 	atomic_clear(bt_mesh_prov_link.flags);
 	(void)memset((uint8_t *)&bt_mesh_prov_link + offset, 0,
diff --git a/subsys/bluetooth/mesh/prov.h b/subsys/bluetooth/mesh/prov.h
index 574e7392814..a88710639db 100644
--- a/subsys/bluetooth/mesh/prov.h
+++ b/subsys/bluetooth/mesh/prov.h
@@ -170,6 +170,14 @@ static inline uint8_t bt_mesh_prov_auth_size_get(void)
 	return bt_mesh_prov_link.algorithm == BT_MESH_PROV_AUTH_CMAC_AES128_AES_CCM ? 16 : 32;
 }
 
+static inline k_timeout_t bt_mesh_prov_protocol_timeout_get(void)
+{
+	return (bt_mesh_prov_link.oob_method == AUTH_METHOD_INPUT ||
+		bt_mesh_prov_link.oob_method == AUTH_METHOD_OUTPUT)
+		       ? PROTOCOL_TIMEOUT_EXT
+		       : PROTOCOL_TIMEOUT;
+}
+
 int bt_mesh_prov_reset_state(void);
 
 bool bt_mesh_prov_active(void);
diff --git a/subsys/bluetooth/mesh/prov_bearer.h b/subsys/bluetooth/mesh/prov_bearer.h
index a14f1888147..45885226dcd 100644
--- a/subsys/bluetooth/mesh/prov_bearer.h
+++ b/subsys/bluetooth/mesh/prov_bearer.h
@@ -5,10 +5,12 @@
  */
 
 /** Provisioning protocol timeout in seconds. */
-#define PROTOCOL_TIMEOUT_SEC  60
+#define PROTOCOL_TIMEOUT_SEC     60
+#define PROTOCOL_TIMEOUT_EXT_SEC 120
 
 /** Provisioning protocol timeout. */
 #define PROTOCOL_TIMEOUT     K_SECONDS(PROTOCOL_TIMEOUT_SEC)
+#define PROTOCOL_TIMEOUT_EXT K_SECONDS(PROTOCOL_TIMEOUT_EXT_SEC)
 
 /** @def PROV_BEARER_BUF_HEADROOM
  *