WiFi issue

I did alot of try and error on my esp8266, and I found out that this little snippet works for me.

  var boola;
  function lan() {
    wlan.connect(logon.ssid, {password: logon.pass}, function (s) {
      boola = true;
      if(s==='bad password') {
        if(debug)console.log('restart lan');
        lan();
      }
    });