diff --git a/src/GSMTransport.c b/src/GSMTransport.c
index 10fdb14..dceb3ae 100644
--- a/src/GSMTransport.c
+++ b/src/GSMTransport.c
@@ -243,16 +243,6 @@ static void GSMInitTask(void *pvParameter)
             goto modem_init_fail;
         vTaskDelay(pdMS_TO_TICKS(1000));
     }
-/*
-    while (esp_modem_set_mode(dce, ESP_MODEM_MODE_CMUX_MANUAL_DATA) != ESP_OK)
-    {
-        if (++GSMConnectTimeout >= PPP_MODEM_TIMEOUT)
-            goto modem_init_fail;
-        vTaskDelay(pdMS_TO_TICKS(1000));
-    }
-*/
-
-
 
     ESP_LOGI(TAG, "PPP data mode OK");
 
diff --git a/src/LoRaWAN.c b/src/LoRaWAN.c
index 12e8a1e..4ce1a99 100644
--- a/src/LoRaWAN.c
+++ b/src/LoRaWAN.c
@@ -117,6 +117,7 @@ void LoRaWANTransportTask(void *pvParameter)
             ESP_LOGI(TAG, "Send=%s", P);
 #endif
             ttn_transmit_message((const uint8_t*) DSS.raw_data_ptr, MESSAGE_LENGTH, 1, true);
+            free(DSS.raw_data_ptr);
         }
         else
         {
diff --git a/src/MQTT.c b/src/MQTT.c
index 07f4bc0..c2d19cd 100644
--- a/src/MQTT.c
+++ b/src/MQTT.c
@@ -224,6 +224,7 @@ void MQTTTaskTransmit(void *pvParameter)
         xQueueReceive(mqtt[idx].mqtt_queue, &DSS, portMAX_DELAY);
         if (mqtt[idx].mqtt)
         {
+            ESP_LOGW(TAG,"MQTT data send:%.*s", DSS.data_length, DSS.raw_data_ptr);
             esp_mqtt_client_publish(mqtt[idx].mqtt,
                                     (const char*) DSS.topic,
                                     (const char*) DSS.raw_data_ptr,