diff --git a/ssdpd/Makefile b/ssdpd/Makefile
index 37e315014..c207b7efd 100644
--- a/ssdpd/Makefile
+++ b/ssdpd/Makefile
@@ -5,7 +5,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=ssdpd
-PKG_VERSION:=1.0.3
+PKG_VERSION:=1.0.4
 
 LOCAL_DEV:=0
 ifneq ($(LOCAL_DEV),1)
@@ -45,8 +45,6 @@ endef
 endif
 
 define Package/ssdpd/install
-	$(INSTALL_DIR) $(1)/etc/upnp
-	$(INSTALL_DIR) $(1)/etc/upnp/description
 	$(INSTALL_DIR) $(1)/etc/config
 	$(INSTALL_DIR) $(1)/etc/init.d
 	$(INSTALL_DIR) $(1)/usr/sbin
diff --git a/ssdpd/files/etc/init.d/ssdpd b/ssdpd/files/etc/init.d/ssdpd
index 10eb25f6b..8a9460125 100755
--- a/ssdpd/files/etc/init.d/ssdpd
+++ b/ssdpd/files/etc/init.d/ssdpd
@@ -34,6 +34,8 @@ configure_ssdp()
 
 	[ ${enabled} -eq 0 ] && return 0
 
+	mkdir -p /tmp/ssdp/description/
+
 	procd_set_param command ${PROG}
 
 	if [ ${ipv6_enabled} -eq 1 ]; then
diff --git a/ssdpd/patches/012-ubus-runner-thread-hook b/ssdpd/patches/012-ubus-runner-thread-hook
index badd26f6f..dc4893b79 100644
--- a/ssdpd/patches/012-ubus-runner-thread-hook
+++ b/ssdpd/patches/012-ubus-runner-thread-hook
@@ -72,7 +72,223 @@
  }
 --- a/minissdpd/ssdpd.c
 +++ b/minissdpd/ssdpd.c
-@@ -624,3 +624,8 @@ end:
+@@ -39,10 +39,9 @@ struct desc_list_elt {
+ 	struct list_head list;
+ 	char *url;
+ 	char *desc_path;
+-	bool is_device_desc;
+ };
+ 
+-#define UPNP_DESC_PATH "/etc/upnp/description"
++#define UPNP_DESC_PATH "/tmp/ssdp/description"
+ #define UPNP_DISCOVER_TIMEOUT (30 * 1000)
+ 
+ #ifndef MIN
+@@ -282,6 +281,21 @@ static bool is_desc_exist(const char *de
+ 	return false;
+ }
+ 
++static bool is_device_exist(const char *dev_url)
++{
++	struct UPNPDev *dev = NULL;
++
++	if (!dev_url)
++		return false;
++
++	list_for_each_entry(dev, &dev_list, list) {
++		if (strcmp(dev->descURL, dev_url) == 0)
++			return true;
++	}
++
++	return false;
++}
++
+ static void get_desc_name(const char *desc_url, char *str, size_t len)
+ {
+ 	if (!desc_url || !str || len == 0)
+@@ -297,7 +311,7 @@ static void get_desc_name(const char *de
+ 	}
+ }
+ 
+-static void add_desc_to_desc_list(const char *desc_path, const char *url, int is_device_desc)
++static void add_desc_to_desc_list(const char *desc_path, const char *url)
+ {
+ 	struct desc_list_elt *desc_elt;
+ 
+@@ -306,7 +320,6 @@ static void add_desc_to_desc_list(const
+ 
+ 	desc_elt->desc_path = strdup(desc_path);
+ 	desc_elt->url = strdup(url);
+-	desc_elt->is_device_desc = is_device_desc;
+ }
+ 
+ static void free_all_desc_list(void)
+@@ -324,10 +337,12 @@ static void free_all_desc_list(void)
+ 
+ static void __upnp_discover_devices(void)
+ {
++	struct desc_list_elt *desc_elt = NULL;
++	struct desc_list_elt *desc_elt_tmp = NULL;
+ 	struct UPNPDev *dev = NULL;
+ 	char desc_name[128] = {0};
+ 	char file_path[256] = {0};
+-	int res = 0, is_device_desc = 0;
++	int res = 0;
+ 
+ 	/*
+ 	 * Discover devices
+@@ -349,13 +364,26 @@ static void __upnp_discover_devices(void
+ 
+ 		get_desc_name(dev->descURL, desc_name, sizeof(desc_name));
+ 		snprintf(file_path, sizeof(file_path), "%s/%s", UPNP_DESC_PATH, desc_name);
+-		is_device_desc = (dev->usn && strstr(dev->usn, ":service:")) ? 0 : 1;
+ 
+ 		// Download Description
+ 		download_file(file_path, dev->descURL);
+ 
+ 		// Add description to descriptions list
+-		add_desc_to_desc_list(file_path, dev->descURL, is_device_desc);
++		add_desc_to_desc_list(file_path, dev->descURL);
++	}
++
++	/*
++	 * Remove unused descriptions
++	 */
++	list_for_each_entry_safe(desc_elt, desc_elt_tmp, &desc_list, list) {
++
++		if (is_device_exist(desc_elt->url))
++			continue;
++
++		free(desc_elt->desc_path);
++		free(desc_elt->url);
++		free(desc_elt);
++		list_del(&desc_elt->list);
+ 	}
+ 
+ end:
+@@ -371,15 +399,27 @@ static int upnp_discovery_res(struct ubu
+ 	memset(&bb,0,sizeof(struct blob_buf));
+ 	blob_buf_init(&bb, 0);
+ 
++	void *root_devices_array = blobmsg_open_array(&bb, "root_devices");
++	list_for_each_entry_reverse(dev, &dev_list, list) {
++		// Parse root device
++		if (dev->st && strstr(dev->st, ":rootdevice") != NULL) {
++			void *device_obj = blobmsg_open_table(&bb, NULL);
++			blobmsg_add_string(&bb, "descurl", dev->descURL);
++			blobmsg_add_string(&bb, "st", dev->st);
++			blobmsg_add_string(&bb, "usn", dev->usn);
++			blobmsg_close_table(&bb, device_obj);
++		}
++	}
++	blobmsg_close_array(&bb, root_devices_array);
++
+ 	void *devices_array = blobmsg_open_array(&bb, "devices");
+ 	list_for_each_entry_reverse(dev, &dev_list, list) {
+-		// Parse Root device and devices
+-		if ((dev->st && strstr(dev->st, ":rootdevice") != NULL) || (dev->usn && strstr(dev->usn, ":device:") != NULL)) {
++		// Parse devices
++		if (dev->usn && strstr(dev->usn, ":device:") != NULL) {
+ 			void *device_obj = blobmsg_open_table(&bb, NULL);
+ 			blobmsg_add_string(&bb, "descurl", dev->descURL);
+ 			blobmsg_add_string(&bb, "st", dev->st);
+ 			blobmsg_add_string(&bb, "usn", dev->usn);
+-			blobmsg_add_string(&bb, "is_root_device", dev->st && strstr(dev->st, ":rootdevice") ? "1" : "0");
+ 			blobmsg_close_table(&bb, device_obj);
+ 		}
+ 	}
+@@ -472,7 +512,7 @@ static void fill_device_instances(struct
+ 		blobmsg_close_table(bb, device_obj);
+ }
+ 
+-static void fill_service_element(struct blob_buf *bb, mxml_node_t *service)
++static void fill_service_instances(struct blob_buf *bb, mxml_node_t *service)
+ {
+ 	mxml_node_t *b = service;
+ 	void *service_obj = NULL;
+@@ -525,6 +565,32 @@ static void fill_service_element(struct
+ 		blobmsg_close_table(bb, service_obj);
+ }
+ 
++static void fill_device_service_instances(struct blob_buf *bb, bool is_device)
++{
++	struct desc_list_elt *desc_elt = NULL;
++
++	list_for_each_entry(desc_elt, &desc_list, list) {
++
++		FILE *fp = fopen(desc_elt->desc_path, "r");
++		if (!fp)
++			continue;
++
++		mxml_node_t *tree = mxmlLoadFile(NULL, fp, MXML_OPAQUE_CALLBACK);
++		fclose(fp);
++
++		if (tree) {
++	 		mxml_node_t *node = mxmlFindElement(tree, tree, "device", NULL, NULL, MXML_DESCEND);
++			
++			if (is_device)
++				fill_device_instances(bb, node);
++			else
++				fill_service_instances(bb, node);
++
++			mxmlDelete(tree);
++		}
++	}
++}
++
+ static int upnp_description_res(struct ubus_context *ctx, struct ubus_object *obj __attribute__((unused)),
+ 		struct ubus_request_data *req, const char *method __attribute__((unused)), struct blob_attr *msg __attribute__((unused)))
+ {
+@@ -534,39 +600,25 @@ static int upnp_description_res(struct u
+ 	memset(&bb,0,sizeof(struct blob_buf));
+ 	blob_buf_init(&bb, 0);
+ 
++	// Descriptions Array
+ 	void *desc_array = blobmsg_open_array(&bb, "descriptions");
+ 	list_for_each_entry(desc_elt, &desc_list, list) {
+ 		void *device_obj = blobmsg_open_table(&bb, NULL);
+ 		blobmsg_add_string(&bb, "desc_url", desc_elt->url);
+-		blobmsg_add_u32(&bb, "is_device_desc", desc_elt->is_device_desc);
+ 		blobmsg_close_table(&bb, device_obj);
+ 
+ 	}
+ 	blobmsg_close_array(&bb, desc_array);
+ 
+-	list_for_each_entry(desc_elt, &desc_list, list) {
+-
+-		FILE *fp = fopen(desc_elt->desc_path, "r");
+-		if (!fp)
+-			continue;
+-
+-		mxml_node_t *tree = mxmlLoadFile(NULL, fp, MXML_OPAQUE_CALLBACK);
+-		fclose(fp);
+-
+-		if (tree) {
+-			void *devices_array = blobmsg_open_array(&bb, "devices");
+-	 		mxml_node_t *device = mxmlFindElement(tree, tree, "device", NULL, NULL, MXML_DESCEND);
+-			fill_device_instances(&bb, device);
+-			blobmsg_close_array(&bb, devices_array);
+-
+-			void *services_array = blobmsg_open_array(&bb, "services");
+-	 		mxml_node_t *service = mxmlFindElement(tree, tree, "device", NULL, NULL, MXML_DESCEND);
+-			fill_service_element(&bb, service);
+-			blobmsg_close_array(&bb, services_array);
++	// Devices Array
++	void *devices_array = blobmsg_open_array(&bb, "devices");
++	fill_device_service_instances(&bb, true);
++	blobmsg_close_array(&bb, devices_array);
+ 
+-			mxmlDelete(tree);
+-		}
+-	}
++	// Services Array
++	void *services_array = blobmsg_open_array(&bb, "services");
++	fill_device_service_instances(&bb, false);
++	blobmsg_close_array(&bb, services_array);
+ 
+ 	ubus_send_reply(ctx, req, bb.head);
+ 	blob_buf_free(&bb);
+@@ -624,3 +676,8 @@ end:
  	uloop_done();
  	ubus_free(ctx);
  }