WiFi Web Server can only connect to it via AP
Posted: Tue Sep 13, 2016 2:37 amHi,
I have been playing with the code for a WiFi Web Server ( http://www.arduinesp.com/wifiwebserver ). The ESP8266 connects perfect to my router, and gets an IP address from it, but when I try to connect to it via my web browser, it just times out.
If I setup the ESP8266 to run in AP mode, and connects to that AP from my computer, I can access the ESP8266 Web Server via my web browser and it works as it should.
Why can I not connect to the ESP8266 Web Server when connected directly to my router, but need to switch to the AP to make it work? The IP address I use to access the ESP8266 Web Server when it is in AP mode, is the IP address my router has given to the ESP8266.
I am using the Arduino board manager version 2.3.0, and Arduino IDE version 1.6.11
The code for the web server is here (taken from http://www.arduinesp.com/wifiwebserver):
Regards
Larsen
I have been playing with the code for a WiFi Web Server ( http://www.arduinesp.com/wifiwebserver ). The ESP8266 connects perfect to my router, and gets an IP address from it, but when I try to connect to it via my web browser, it just times out.
If I setup the ESP8266 to run in AP mode, and connects to that AP from my computer, I can access the ESP8266 Web Server via my web browser and it works as it should.
Why can I not connect to the ESP8266 Web Server when connected directly to my router, but need to switch to the AP to make it work? The IP address I use to access the ESP8266 Web Server when it is in AP mode, is the IP address my router has given to the ESP8266.
I am using the Arduino board manager version 2.3.0, and Arduino IDE version 1.6.11
The code for the web server is here (taken from http://www.arduinesp.com/wifiwebserver):
Code: Select all
#include <ESP8266WiFi.h>
const char* ssid = "your-ssid";
const char* password = "your-password";
int ledPin = 2; // GPIO2
WiFiServer server(80);
void setup() {
Serial.begin(115200);
delay(10);
WiFi.mode(WIFI_STA); // WiFi.mode(WIFI_AP);
pinMode(ledPin, OUTPUT);
digitalWrite(ledPin, LOW);
// Connect to WiFi network
Serial.println();
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
// Start the server
server.begin();
Serial.println("Server started");
// Print the IP address
Serial.print("Use this URL to connect: ");
Serial.print("http://");
Serial.print(WiFi.localIP());
Serial.println("/");
}
void loop() {
// Check if a client has connected
WiFiClient client = server.available();
if (!client) {
return;
}
// Wait until the client sends some data
Serial.println("new client");
while(!client.available()){
delay(1);
}
// Read the first line of the request
String request = client.readStringUntil(‘\r’);
Serial.println(request);
client.flush();
// Match the request
int value = LOW;
if (request.indexOf("/LED=ON") != -1) {
digitalWrite(ledPin, HIGH);
value = HIGH;
}
if (request.indexOf("/LED=OFF") != -1) {
digitalWrite(ledPin, LOW);
value = LOW;
}
// Return the response
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println(""); // do not forget this one
client.println("<!DOCTYPE HTML>");
client.println("<html>");
client.print("Led pin is now: ");
if(value == HIGH) {
client.print("On");
} else {
client.print("Off");
}
client.println("<br><br>");
client.println("Click <a href=\"/LED=ON\">here</a> turn the LED on pin 2 ON<br>");
client.println("Click <a href=\"/LED=OFF\">here</a> turn the LED on pin 2 OFF<br>");
client.println("</html>");
delay(1);
Serial.println("Client disonnected");
Serial.println("");
}
Regards
Larsen