Client.connect fails with static IP Address

[stavBodik]

Hardware

Hardware: ?ESP-12E?
Core Version: ? How do i find it (^^) ? ?

Description

Connecting with WiFiClient.connect fails when connected to router with static ip address,
When connected trough DHCP works fine .
Port 80 forward configured .

Settings in IDE

Module: ?Generic ESP8266 Module?
Flash Size: ?512K (64K SPIFFS)?
CPU Frequency: ?80Mhz?
Flash Mode: ?dio?
Flash Frequency: ?40Mhz?
Upload Using: ?SERIAL?
Reset Method: ?nodemcu?

Sketch

#include <ESP8266WiFi.h>
#include <SPI.h>

const char* ssid     = "********";
const char* password = "*******";
const char* host = "********";

IPAddress ip(192, 168, 0, 20);    
IPAddress gateway(192,168,1,1); 
IPAddress subnet(255,255,255,0); 

void setup() {

  String Statuses[] =  { "WL_IDLE_STATUS=0", "WL_NO_SSID_AVAIL=1", "WL_SCAN_COMPLETED=2", "WL_CONNECTED=3", "WL_CONNECT_FAILED=4", "WL_CONNECTION_LOST=5", "WL_DISCONNECTED=6"};

  Serial.begin(115200);
  delay(10);

  // We start by connecting to a WiFi network

  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.config(ip, gateway, subnet);
  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
    Serial.println(Statuses[WiFi.status()]);
  }

  Serial.println("WiFi connected");  

}


void loop() {
  delay(5000);

  Serial.print("connecting to ");
  Serial.println(host);

  // Use WiFiClient class to create TCP connections
  WiFiClient client;
  const int httpPort = 80;
  if (!client.connect(host, httpPort)) {
    Serial.println("connection failed error");
    Serial.println(client.connect(host, httpPort));
    return;
  }

.....
} 

Debug Messages

Connecting to ********
wifi evt: 0
wifi evt: 3
WL_CONNECTED=3
WiFi connected
connecting to ********
[hostByName] request IP for: ********
[hostByName] Host: ******** lookup error: -5!
connection failed error
[hostByName] request IP for: ********
[hostByName] Host: ******** lookup error: -5!
0

[chaeplin]

Edited: Old info.

[stavBodik]

I saw this post but i need the config to work before begin all the idia is to tell the WiFi class not to wait for ip address from the router .

Calling WiFi.config() before WiFi.begin() forces begin() to configure the WiFi shield with the network addresses specified in config().

But i will try for knowing if its works .

[chaeplin]

@stavBodik

I have tested static ip config. config before begin works.
To use dns, config should be like this.

WiFi.config(ip_static, ip_gateway, ip_subnet, ip_dns); 
// WiFi.config(ip_static, ip_gateway, ip_subnet, ip_dns1, ip_dns2); 
WiFi.begin(ssid, password);

https://github.com/esp8266/Arduino/blob/master/libraries/ESP8266WiFi/src/ESP8266WiFiSTA.h#L42

[stavBodik]

So i have tryd with the dns thing , not working same -5 look up error .
Maybe it has something to do with my router ? please take look at the next screen shoot :

In green is the input to .config

in red , this is wan right ? we are not connecting from output global internet its ok that its DHCP there ?
Also i have tryd after begin with and w/o dns both/single not works .

[chaeplin]

@stavBodik
ip and gateway is not on a same subnet.
IPAddress ip(192, 168, 0, 20); and IPAddress gateway(192,168,1,1);

IPAddress ip(192, 168, 0, 20);    
IPAddress gateway(192,168,1,1); 
IPAddress subnet(255,255,255,0); 

If the router runs local dns cache or dns forwarder,

IPAddress ip_static(192, 168, 1, 20);    
IPAddress ip_gateway(192,168,1,1); 
IPAddress ip_subnet(255,255,255,0); 
IPAddress ip_dns(192,168,1,1);
WiFi.config(ip_static, ip_gateway, ip_subnet, ip_dns); 
WiFi.begin(ssid, password);

else

IPAddress ip_static(192, 168, 1, 20);    
IPAddress ip_gateway(192,168,1,1); 
IPAddress ip_subnet(255,255,255,0); 
IPAddress ip_dns1(213,57,2,5);
IPAddress ip_dns1(213,57,22,5);
WiFi.config(ip_static, ip_gateway, ip_subnet, ip_dns1, ip_dns2); 
WiFi.begin(ssid, password);

WAN is connected to ISP using DHCP(ip : 5.xx.xx.184), it's not related to local LAN.
Check router config whether router only permits connection from DHCP client.

[Ciriaco08]

Change the order of this:

WiFi.config(ip, gateway, subnet);
WiFi.begin(ssid, password);

for this:
WiFi.begin(ssid, password);
WiFi.config(ip, gateway, subnet);

This is solved here: #128

[stavBodik]

chaeplin Amazing option 2 works !!! seems like i had connection problem (rst-16) was disconnected , Thanks !!!! Now with my (dutyCycle==0.00721) && (weak_up +connection+sendingTime) ~=0.2S
My esp can run for years !!!

[drmpf]

WiFi.status() != WL_CONNECTED fails for static IP in V2.3.0 but works in V2.2.0

test code

#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <ESP8266mDNS.h>

const char* ssid = ".....";
const char* password = "......";

ESP8266WebServer server(80);

void setup(void) {
  Serial.begin(115200);
  for (int i = 10; i > 0; i--) { // wait 10sec with fan on at start up to indicate sucessful reset on powerup
    Serial.print(i);
    Serial.print(' ');
    delay(1000);
  }
  WiFi.begin(ssid, password);
  Serial.println("WiFi.begin called waiting for connected");

  IPAddress ip(10, 1, 1, 222);
  IPAddress gateway(ip[0], ip[1], ip[2], 1); // set gatway to ... 1
  IPAddress subnet(255, 255, 255, 0);
  Serial.print(F("Setting ip to: "));
  Serial.println(ip);
  Serial.print(F("Setting gateway to: "));
  Serial.println(gateway);
  Serial.print(F("Setting subnet to: "));
  Serial.println(subnet);
  if (!WiFi.config(ip, gateway, subnet, gateway)) {
    Serial.println("WiFi.config() failed");
  }
  Serial.println("WiFi.config() succeeded");

  // Wait for connection for 15 sec and then just continue
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.print("Connected to ");
  Serial.println(ssid);
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

}

void loop(void) {
}

Results V2.3.0
5 4 3 2 1 WiFi.begin called waiting for connected
Setting ip to: 10.1.1.222
Setting gateway to: 10.1.1.1
Setting subnet to: 255.255.255.0
WiFi.config() succeeded
............................................................................................

BUT fing, shows 10.1.1.222 is on the network

Results after rolling back to V2.2.0
7 6 5 4 3 2 1 WiFi.begin called waiting for connected
Setting ip to: 10.1.1.222
Setting gateway to: 10.1.1.1
Setting subnet to: 255.255.255.0
WiFi.config() succeeded

Connected to FCC-Wfi
IP address: 10.1.1.222

Also on V2.2.0 also works calling config() BEFORE calling begin (as it should be)

[devyte]

Closing as resolved.

[justin8]

For anyone having this issue who ends up here in the future, as ridiculous as it sounds, slowing your upload speed to 57600 baud fixed this issue for me completely. I couldn't get it working on 2.3.0 or 2.2.0 at all beforehand, now both work flawlessly.