Connection timed out (ETIMEDOUT) no cadastro do aluno

Olá,

Estou cadastrando o aluno pelo celular, não estou usando o emulador, está gerando o erro mais abaixo.

Não achei nenhum tópico relacionado.

Estou procurando na net, mas pode ser alguma configuração no cel. para acessar o ip do note. Caso alguém tenha passado pelo mesmo problema, poste aqui.

Obrigado!

Erro:

W/System.err: java.net.ConnectException: failed to connect to /192.168.85.1 (port 8080): connect failed: ETIMEDOUT (Connection timed out)
                  at libcore.io.IoBridge.connect(IoBridge.java:124)
                  at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:183)
                  at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:452)
                  at java.net.Socket.connect(Socket.java:884)
                  at com.android.okhttp.internal.Platform.connectSocket(Platform.java:117)
                  at com.android.okhttp.internal.http.SocketConnector.connectRawSocket(SocketConnector.java:434)
                  at com.android.okhttp.internal.http.SocketConnector.connectCleartext(SocketConnector.java:105)
                  at com.android.okhttp.Connection.connect(Connection.java:1333)
                  at com.android.okhttp.Connection.connectAndSetOwner(Connection.java:1412)
                  at com.android.okhttp.OkHttpClient$1.connectAndSetOwner(OkHttpClient.java:131)
                  at com.android.okhttp.internal.http.HttpEngine.nextConnection(HttpEngine.java:485)
                  at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:466)
                  at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:372)
                  at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:476)
                  at com.android.okhttp.internal.huc.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:118)
                  at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getOutputStream(HttpURLConnectionImpl.java:249)
                  at br.com.alura.agenda.WebClient.realizaConexao(WebClient.java:37)
                  at br.com.alura.agenda.WebClient.insere(WebClient.java:21)
                  at br.com.alura.agenda.tasks.InsereAlunoTask.doInBackground(InsereAlunoTask.java:22)
                  at android.os.AsyncTask$2.call(AsyncTask.java:295)
                  at java.util.concurrent.FutureTask.run(FutureTask.java:237)
                  at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
                  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
                  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
                  at java.lang.Thread.run(Thread.java:818)
              Caused by: android.system.ErrnoException: connect failed: ETIMEDOUT (Connection timed out)
                  at libcore.io.Posix.connect(Native Method)
                  at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:111)
                  at libcore.io.IoBridge.connectErrno(IoBridge.java:137)
                  at libcore.io.IoBridge.connect(IoBridge.java:122)
                  ... 24 more

WebClient:

public class WebClient {

    public String post(String json){
        String endereco = "https://www.caelum.com.br/mobile";
        return realizaConexao(json, endereco);
    }

    public void insere(String json) {
        String endereco = "http://192.168.85.1:8080/api/aluno";
        realizaConexao(json, endereco);
    }

    @Nullable
    private String realizaConexao(String json, String endereco) {
        try {
            URL url = new URL(endereco);
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            //tipo de dado que está enviando
            connection.setRequestProperty("Content-type","application/json");
            //tipo de dado que aceita como resposta
            connection.setRequestProperty("Accept","application/json");

            connection.setDoOutput(true);//quero fazer um post no corpo da requisicao

            //escrever no corpo da requisição o q enviar
            PrintStream output = new PrintStream(connection.getOutputStream());
            output.println(json);

            //enviar e pegar a resposta

            //estabelece a conexao
            connection.connect();
            //pegar a resposta
            Scanner scanner = new Scanner(connection.getInputStream());
            //ler a resposta do servidor
            String resposta = scanner.next();
            return resposta;

        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        return null;
    }


}