Wifi connection works, but no backend connection

[niburhe]

Hello,

I have the Sunfound 3in1 Kit and now try to get started with blynk. I have arduino with esp8266 with this cabeling https://docs.sunfounder.com/projects/3in1-kit/en/latest/_images/wiring_23.jpg

 /* Comment this out to disable prints and save space */
#define BLYNK_PRINT Serial

/* Fill in information from Blynk Device Info here */
#define BLYNK_TEMPLATE_ID "TMP*****"
#define BLYNK_TEMPLATE_NAME "Quickstart Template"
#define BLYNK_AUTH_TOKEN "bWf8V1********"


#include <ESP8266_Lib.h>
#include <BlynkSimpleShieldEsp8266.h>

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "******";
char pass[] = "*****";

// Hardware Serial on Mega, Leonardo, Micro...
//#define EspSerial Serial1

// or Software Serial on Uno, Nano...
#include <SoftwareSerial.h>
SoftwareSerial EspSerial(2, 3); // RX, TX

// Your ESP8266 baud rate:
#define ESP8266_BAUD 9600

ESP8266 wifi(&EspSerial);

void setup()
{
  // Debug console
  Serial.begin(9600);

  // Set ESP8266 baud rate
  EspSerial.begin(ESP8266_BAUD);
  delay(10);

  Blynk.begin(BLYNK_AUTH_TOKEN, wifi, ssid, pass);
}

void loop()
{
  Blynk.run();
}

I get a connection to the Wifi, but it looks like it never try to reach the blynk backend. I get no connection timeout or anything else

---

/ _ )/ /_ _____ / /__
/ _ / / // / _ / '/
///_, /////_
/__/ v1.2.0 on Arduino Uno
#StandWithUkraine https://bit.ly/swua

[647] Connecting to ***
[3843] AT version:1.1.0.0(May 11 2016 18:09:56)
SDK version:1.5.4(baaeaebb)
compile time:May 20 2016 15:08:19
OK
[11121] +CIFSR:STAIP,“192.168.179.13”
+CIFSR:STAMAC,“d8:bf:c0:c0:5d:3a”
[11131] Connected to WiFi

Somebody has an idea to get backend connection?

Thanks & regards

[PeteKnight]

I’d start by rebooting your router.

Pete.

[niburhe]

Hi Pete,

I restarted the Router, but this not works. When I tried over a mobile hotspot it works.

Could it bei with the frequency of the WiFi? Mobile hotspot had only 2,4Ghz, Fritzbox offers 2,4Ghz and 5Ghz under same SSID. Strange that connection with WiFi works with Fritzbox but Connection to Internet Not.

Kind regards,
Nils

[PeteKnight]

ESP boards only operate on 2.4GHz.
Having the same SSID for 2.4 and 5GHz may be an issue.

Pete.