call translator timeout sometimes

Exception:
java.net.SocketTimeoutException: timeout

call example:
public class Translate {
private static String subscriptionKey = "YOUR_SUBSCRIPTION_KEY";

// Add your location, also known as region. The default is global.
// This is required if using a Cognitive Services resource.
private static String location = "YOUR_RESOURCE_LOCATION";

HttpUrl url = new HttpUrl.Builder()
    .scheme("https")
    .host("api.cognitive.microsofttranslator.com")
    .addPathSegment("/translate")
    .addQueryParameter("api-version", "3.0")
    .addQueryParameter("from", "en")
    .addQueryParameter("to", "de")
    .addQueryParameter("to", "it")
    .build();

// Instantiates the OkHttpClient.
OkHttpClient client = new OkHttpClient();

// This function performs a POST request.
public String Post() throws IOException {
    MediaType mediaType = MediaType.parse("application/json");
    RequestBody body = RequestBody.create(mediaType,
            "[{\"Text\": \"Hello World!\"}]");
    Request request = new Request.Builder().url(url).post(body)
            .addHeader("Ocp-Apim-Subscription-Key", subscriptionKey)
            .addHeader("Ocp-Apim-Subscription-Key", location)
            .addHeader("Content-type", "application/json")
            .build();
    Response response = client.newCall(request).execute();
    return response.body().string();
}

// This function prettifies the json response.
public static String prettify(String json_text) {
    JsonParser parser = new JsonParser();
    JsonElement json = parser.parse(json_text);
    Gson gson = new GsonBuilder().setPrettyPrinting().create();
    return gson.toJson(json);
}

public static void main(String[] args) {
    try {
        Translate translateRequest = new Translate();
        String response = translateRequest.Post();
        System.out.println(prettify(response));
    } catch (Exception e) {
        System.out.println(e);
    }
}

}