Java Client Android On virtual device is working, on real device not

Question

On virtual device is working, on real device not. Checked all ip, many ports, but nothing.

Android 7.1.1 Lenovopad TB-X304F

In manifest:

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

Code:

public class MainActivity extends AppCompatActivity {

EditText e1;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    e1 = (EditText)findViewById(R.id.editText);
}

public void send_text(View v) {
    String message = e1.getText().toString();
    myTask mt = new myTask();
    mt.execute(message);

    Toast.makeText(getApplicationContext(),"Data sent: "+e1.getText().toString(), Toast.LENGTH_LONG).show();
}

class myTask extends AsyncTask<String, Void, Void>{
    Socket s;
    PrintWriter printWriter;

    @Override
    protected Void doInBackground(String... params){
        try {
            String message = params[0];
            s = new Socket("192.168.1.5", 6001);
            printWriter = new PrintWriter(s.getOutputStream());
            printWriter.write(message);
            printWriter.flush();
            printWriter.close();

        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }
}

Error:

W/System.err: java.net.ConnectException: Connection timed out

Possible duplicate of Why would a "java.net.ConnectException: Connection timed out" exception occur when URL is up? — doganak
– doganak, Commented Feb 4, 2018 at 14:22

Vadim Babiichuck · Accepted Answer · 2018-02-05 18:22:55Z

0

The mistake was that I did not know that I had to disable the firewall and open the port. I opened the port and it all worked.

answered Feb 5, 2018 at 18:22

Vadim Babiichuck

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