ESP32 is offline

Issues and Errors
1

Hello,

i use firstime the esp32 chip (sparkfun dev board) and have always error by using the app

I take the actual library 4.1 and programm the esp32 with arduino actual version. So i use the latest app versions for ios or android, the problem is the same. WiFi is connected. Network ssid is the same by ESP32 Dev Board and the mobile telephone. The auth keyword is correctly entered. The Port 8442 on my Router is open for the ESP Board.

The following is displayed in the terminal

4943] Connected to WiFi
[4943] IP: 192.168.178.203
[4943]
___ __ __
/ _ )/ /_ _____ / /__
/ _ / / // / _ / '/
///_, /////_
/__/ v0.4.1 on ESP32

[5013] Connecting to blynk-cloud.com:8442
I (12824) wifi: pm open, type:0, st: 0, sending null data: 0

[E][WiFiClient.cpp:74] connect(): lwip_connect_r: 113
[23321] Connecting to blynk-cloud.com:8442
[E][WiFiClient.cpp:74] connect(): lwip_connect_r: 113
[41823] Connecting to blynk-cloud.com:8442
[E][WiFiClient.cpp:74] connect(): lwip_connect_r: 113
[60134] Connecting to blynk-cloud.com:8442
[E][WiFiClient.cpp:74] connect(): lwip_connect_r: 118
[65135] Connecting to blynk-cloud.com:8442
[E][WiFiClient.cpp:196] available(): 88
[65160] Connecting to blynk-cloud.com:8442
[E][WiFiClient.cpp:196] available(): 88
… and so on

So i think they cannot connect to “blynk-cloud.com:8442”. Therefore the
app shows “device is offline”.

What is the reason of this connection failure.

I try it with Hotspot from my Iphone(connected with LTE), the same issue, wifi connected but connect to
blynk-cloud.com:8442 shows the same.

Can you please help me. Thanks.

Sincerely,

Sinan

PS:sorr

2

SNAG-0252_blynk.jpg782×472 134 KB
Hello friend:
I have the same problem like you.
I am using ESP-32 DEV BOARD, New Blynk library v0.4.1, fiber optic cable and 4G mobile phone access points.
How to fixed it ? Cloud you please help me. Thank you.

3

Guys I need to re-check it, the hardware is new and may be unstable. I’ll get back to you.

4

There’s a bug on ESP32 side (will have to wait for a fix):

5

Still waiting. Thank you.

6

The problem is on ESP32 side, so it should work after they fix it.

1 Like
7

wonder how this guy able to run esp32 blynk :thinking:
Blynk ESP32 Blinking video

8

ok. seems 58ac6fb version of arduino ide working. you can try "git reset --hard 58ac6fb" command in where cloned repo.

1 Like
9

latest commit already solved the issue (4395efa)

1 Like
10

Exactly. Please update your ESP32 for Arduino, and it should work

1 Like
11

Thank you so much.
Problem solved !!!
Happy Blynking and Happy New Year 2017 !

12

Nice, It is working! Just updated mine and did a RGB led test. Seems faster than my wemos! I think this is going to be a good IOT board!

13

Only a little bit more expensive😉