From be36218b846099fee336d03df30c5f3684fc3c42 Mon Sep 17 00:00:00 2001
From: Theo Arends <mhtarends@gmail.com>
Date: Wed, 25 Apr 2018 18:25:25 +0200
Subject: [PATCH] Possible 2.4.1 memory leak fix (#2544)

---
 sonoff/xdrv_00_mqtt.ino | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/sonoff/xdrv_00_mqtt.ino b/sonoff/xdrv_00_mqtt.ino
index 68b3c6a70..7d47f37b5 100644
--- a/sonoff/xdrv_00_mqtt.ino
+++ b/sonoff/xdrv_00_mqtt.ino
@@ -399,6 +399,11 @@ boolean MqttCheckTls()
   }
 
   AddLog_P(LOG_LEVEL_INFO, S_LOG_MQTT, PSTR(D_FINGERPRINT));
+
+//#ifdef ARDUINO_ESP8266_RELEASE_2_4_1
+  EspClient = WiFiClientSecure();               // Wifi Secure Client reconnect issue 4497 (https://github.com/esp8266/Arduino/issues/4497)
+//#endif
+
   if (!EspClient.connect(Settings.mqtt_host, Settings.mqtt_port)) {
     snprintf_P(log_data, sizeof(log_data), PSTR(D_LOG_MQTT D_TLS_CONNECT_FAILED_TO " %s:%d. " D_RETRY_IN " %d " D_UNIT_SECOND),
       Settings.mqtt_host, Settings.mqtt_port, mqtt_retry_counter);
@@ -479,6 +484,14 @@ void MqttReconnect()
     mqtt_initial_connection_state = 1;
   }
 
+//#ifdef ARDUINO_ESP8266_RELEASE_2_4_1
+#ifdef USE_MQTT_TLS
+  EspClient = WiFiClientSecure();         // Wifi Secure Client reconnect issue 4497 (https://github.com/esp8266/Arduino/issues/4497)
+#else
+  EspClient = WiFiClient();               // Wifi Client reconnect issue 4497 (https://github.com/esp8266/Arduino/issues/4497)
+#endif
+//#endif
+
 #if (MQTT_LIBRARY_TYPE == MQTT_PUBSUBCLIENT)
   MqttClient.setCallback(MqttDataHandler);
   MqttClient.setServer(Settings.mqtt_host, Settings.mqtt_port);