when I run your code it connects to the WiFi and I can connect a web browser to 192.168.1.94 and switch the LED on/off OK
check your LED connection it is D7
int ledPin = D7;
try updating setup() to
void setup() {
Serial.begin(115200);
delay(10);
pinMode(ledPin, OUTPUT);
digitalWrite(ledPin, LOW);
Serial.println();
Serial.println("LedPin ");
Serial.println(ledPin);
// Connect to WiFi network
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
digitalWrite(ledPin, !digitalRead(ledPin));
}
Serial.println("");
Serial.println("WiFi connected");
// Start the server
server.begin();
Serial.println("Server started");
// Print the IP address
Serial.print("Use this URL : ");
Serial.print("http://");
Serial.print(WiFi.localIP());
Serial.println("/");
}
to test the LED it blinks the LED while the WiFi is connecting