SOLVED: Wifi.config not working?

[ArnieO]

I am trying to set static IP address, and tried this:
IPAddress ip(192,168,0,124);
(...)
WiFi.config(ip);
WiFi.begin(ssid, password);
Compiler error: It wants three arguments: IP, gateway, subnet.

New attempt:
IPAddress ip(192,168,0,124);
IPAddress gateway(192,168,0,1);
IPAddress subnet(255,255,255,0);
(...)
WiFi.config(ip, gateway, subnet);
WiFi.begin(ssid, password);
This compiles, but the IP address does not change.

Please advise.

[Imroy]

You need to do config() after begin().

[ArnieO]

Thank you Imroy - with config() after begin() it works!
Lacking documentation, I followed a Wifi shield example on the Arduino web page that uses begin() before config().
Apparently, the ESP needs it the other way around.

[dilushan]

Thanks this solved my problem also. In my case that is for the WiFi.softAPConfig

[DLavin]

This also works for WiFiMulti.run(), where there is no begin().

[daviesrv]

Thanks for the info. Cleared my issue.

[alaintanguay]

Hello
I try to change the Mask on softAPConfig , to 255.0.0.0 , but still 255.255.255.0
The IP have change , but not the mask

this is my code

IPAddress ip(10,0,0,101);
WiFi.softAP(apssid,appassword);
WiFi.softAPConfig(ip, ip, IPAddress(255,0,0,0));

Thanks for your support

same for me - SNM isn't working...
WiFi.config(ip, dns, gateway, subnet);
WiFi.config(IPAddress(192, 168, 4, 23), IPAddress(8, 8, 8, 8), IPAddress(192, 168, 0, 1), IPAddress(255, 255, 240, 0));

[thorathome]

I have found WiFi.config issue, for some reason, is particularly sensitive to serial upload speeds.
Using Arduino IDE 1.6.9, uploading at 115200, for example, I ran into intermittent problems with WiFi.config on my Chinese v1 ESP8266 board. Ratcheting down to 57600, however, cured it.
(Tools -> Upload Speed -> 57600)

Go figure. But slowing down the serial upload got me back on track. Maybe it'll help you.

[drmpf]

Rolling back to V2.2.0 fixed all my static IP connection problems

[flagtrax]

Using NodeMCU/lua, I've found several issues trying to connect after using config and changing the password or auth parameters for AP mode or stationap . Using NodeMCU, according to the doc's the config statement for AP mode is in the form wifi.ap.config(cfg) Where:
ssid SSID chars 1-32
pwd password chars 8-64
auth authentication method, one of wifi.OPEN (default), wifi.WPA_PSK, wifi.WPA2_PSK, wifi.WPA_WPA2_PSK
channel channel number 1-14 default = 6
hidden 0 = not hidden, 1 = hidden, default 0
max maximal number of connections 1-4 default=4
beacon beacon interval time in range 100-60000, default = 100
I'm loading via ESPlorer IDE. If I omit password all together as well as auth parameters, I can connect (sometimes) but my android phone shows a secure wpa/psk connection no matter how I set the auth parameter. According to what I read (i think) I think it says (using lua ) the parameter "wifi.OPEN" should set it to unprotected access. My laptop wont connect at all (using windows 10) simply stating "cannot connect to this network". When I enter the auth parameter (auth=wifi.open) I get an error at compile time that says it was expecting a numeric (not string) entry. So I entered a 0 (zero), and the compiler took it but nothing changed. Similarly If I enter a password, sometimes it works sometime it doesn't. For the NodeMCU community, the documentation on this is very sketchy. As far as upload speed goes, ESPlorer uart speed is 9600 by default. (yeah, pretty slow). This has all been using a generic ESP12E, flashed with NodeMCU, using ESPlorer as an IDE.

[palani12]

Iam using wifi shield Esp8266 is connected the my laptop but wifi shield getting data not produce in laptop. my wifi shield port is showing in my laptop network settings .i was click the showing wifi shield port is open then show NO internet open. what is the problem showing NO internet open. then i was do the trouble shooting in my network settings after trouble shooting problem found --The DNS Server is not responding.