ESP8266 Community Forum

Posted: **Sat Aug 06, 2016 12:18 am**

I am using a 12f and attempting to get HTTP Update sorted. I have asked for help with it on Github but it seems more active here. With the following code I am getting:

HTTP_UPDATE_FAILED Error (-1): HTTP error: connection refused

Code: Select all


void setup() {
  
  Serial.begin(9600);
  delay(10);
  Serial.println(F("System Initiating..."));
  client.setServer(mqtt_server,mqttPort);
  pinMode(powerPin, OUTPUT);
  readSpiffs();
  
  if ( esid != "" ) {
    
      WiFi.begin(esid.c_str(), epass.c_str());
      
      if (checkWifiConnection()) {
        
        serverType = "WC";
        Serial.println(F("Successfully connected to WiFi"));      
        
        t_httpUpdate_return ret = ESPhttpUpdate.update("https://iot.techbubbletechnologies.com/updates/updater.php","","E1 D2 56 D8 9B 14 F2 8E 3D 36 D9 35 BC B3 4F 19 45 C1 97 98");
    
        switch(ret) {
             case HTTP_UPDATE_FAILED:
                Serial.printf("HTTP_UPDATE_FAILD Error (%d): %s", ESPhttpUpdate.getLastError(), ESPhttpUpdate.getLastErrorString().c_str());
                Serial.println("");
                break;
    
            case HTTP_UPDATE_NO_UPDATES:
                Serial.println("HTTP_UPDATE_NO_UPDATES");
                break;
    
            case HTTP_UPDATE_OK:
                Serial.println("HTTP_UPDATE_OK");
                break;
        } 
      
        long rssi = WiFi.RSSI();
        digitalWrite(powerPin, HIGH);
        delay(1000);
        dht.begin(); 
        delay(2);
        
        return;
        
      } 
  }

I have removed any HTACCESS redirects on that folder and the SHA1 is correct, any ideas guys, getting pretty frustrated with this one

At the moment the page in question is just returning the NO UPDATES header yet it is returning connection denied.

Posted: **Sat Aug 06, 2016 9:25 am**

Currently, your server is responding a HTTP Error 304, which is HTTP_CODE_NOT_MODIFIED, therefore Updater returns HTTP_UPDATE_NO_UPDATES.
Did you check on the server side if there any reason for this Error 304 ?
Did you also tried without SSL (although I've tried with wget and still returning 304) ?

Posted: **Sat Aug 06, 2016 10:51 am**

martinayotte wrote:Currently, your server is responding a HTTP Error 304, which is HTTP_CODE_NOT_MODIFIED, therefore Updater returns HTTP_UPDATE_NO_UPDATES.
Did you check on the server side if there any reason for this Error 304 ?
Did you also tried without SSL (although I've tried with wget and still returning 304) ?

I mentioned that I set it to respond with that response but when using the code above updater does not respond with this it responds with connection refused. I cannot try without SSL the server is secure and has an A+ Qualys rating (Higher than Google and Facebook

) and includes PFS, HSTS etc. Unencrypted communication is not possible.

Posted: **Sat Aug 06, 2016 11:40 am**

martinayotte wrote:Currently, your server is responding a HTTP Error 304, which is HTTP_CODE_NOT_MODIFIED, therefore Updater returns HTTP_UPDATE_NO_UPDATES.
Did you check on the server side if there any reason for this Error 304 ?
Did you also tried without SSL (although I've tried with wget and still returning 304) ?

Bit of extra info the broker is on the same domain and no issues connecting securely there:

System Initiating...
Mounted file system!
Waiting for Wifi to connect...
......Successfully connected to WiFi
HTTP_UPDATE_FAILD Error (-1): HTTP error: connection refused
CURRENT BATTERY: 2.89
30.00
56.00
Attempting connection to TechBubble IoT JumpWay...
Connected to TechBubble IoT JumpWay!

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