I use a MKR 1010 (firmware 1.2.1), download WifiNINA library (version 1.3.0) and started to play with it.

I can connect to my Wifi network, and WifiNINA library examples such a WifiPing (which repeatedly pings www.google.com) works fine.

However, I can't get any of the server examples (e.g. WifiWebServer) to work.

I can see that the board connects to the network and gets an IP and the Serial monitor is printing this :

09:11:15.989 -> SSID: OfficeNet
09:11:15.989 -> IP Address:
09:11:15.989 -> signal strength (RSSI):-36 dBm
09:11:15.989 -> To see this page in action, open a browser to

But if I browser to, I never get any answer.

The loop code is just from the example :

void loop() {
  WiFiClient client = server.available();   // listen for incoming clients

  if (client)
  {                             // if you get a client,
    Serial.println("new client");           // print a message out the serial port
  // close the connection:
  Serial.println("client disonnected");

I am never getting inside the if client()loop ("new client" never printed).

Any suggestions?

  • 1
    is your computer on the same WiFi network?
    – Juraj
    Jan 12, 2019 at 16:11
  • 1
    Yes, same network "OfficeNet". I did some more tests, the arduino can ping google server, but no computer from my network (I tried with 2 of them - and they can ping each other). I forced fixed IP address for all of them, no change...
    – AirXygène
    Jan 12, 2019 at 18:30
  • 1
    is the network mask or is it different?
    – Juraj
    Jan 12, 2019 at 20:48
  • 1
    Thanks for your interest Juraj ! Not sure how to check this. In my TCP/IP configuration there is something I would translate by "sub-network" which value is indeed It is now quite late in my time zone. I'll go to sleep and delete/re-install everything tomorrow.
    – AirXygène
    Jan 12, 2019 at 20:53
  • 1
    Dawn ! I deleted the whole Arduino IDE and re-installed everything yesterday night, and I got it working without any modification ! I even could ping any machine from my network. Switch off everything, came back this morning, and same problem again. Nothing works...
    – AirXygène
    Jan 13, 2019 at 11:25


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