Creating new socket returns a null socket

Question

I have been trying to initiate a socket connection within my application like this:

Socket socket =null;
try{
socket = new Socket("192.168.43.206",10000);
} catch(IOException e){
    Log.d("Socket ",e.getLocalizedMessage());
}

I have a TCP server running on my PC which is connected to the same router as the phone on which i am debugging. But when I debug and check the object socket it contains null and yet there were no exceptions caught. What am i doing wrong?

Is there a firewall running on your machine ? If yes , disable it for some time and check — Alok Kulkarni, Mar 21 '14 at 08:01

score 2 · Answer 1 · answered Mar 21 '14 at 08:01

(Would like to paste it as a comment, but have too little reputation)

Try catching the other exceptions and look if they are thrown: http://docs.oracle.com/javase/7/docs/api/java/net/Socket.html

If you use linux, you can check if you can connect to that TCP connection (from PC) using netcat: [my]$ nc 192.168.43.206 10000

score 1 · Answer 2 · edited May 23 '17 at 10:34

1

Check if you have added internet permission in manifest. i.e.

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

See related question

edited May 23 '17 at 10:34

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answered Mar 21 '14 at 08:10

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Creating new socket returns a null socket

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