java - not getting any response from server, but able to get response from telnet -

i fist connecting through vpn client able telnet , able response when paste request string on terminal.

same request if trying through java program, not getting response.

i can see using netstat there established tcp connection when try through java. tcp 10.2.2.22:1154 184.23.23.61:7565 established

here java client code sends request.

        socket client = new socket(serverip, port);         outputstream out = client.getoutputstream();         inputstream in = client.getinputstream();         string test = "tue231363**";          stringbuffer response = new stringbuffer("response : ");         out.write(test.getbytes());         out.flush();          int c;         system.out.println("waiting response.......>>>>>>>>>>>>>");          while ((c = in.read()) != -1) {             if (isendofresponse(c))                 break;             system.out.print((char) c);             response.append(c);         }         client.close();         system.out.println(response.tostring()); 

every time after few minutes [5-6 min] exits without response.

i bit new networking, can suggest missing.

i assume telnetting same ip address , port trying connect java.

the fact telnet connects, , client appears connect imply the server running, , has created bound serversocket on right ip / host. calling accept properly. seems server either not reading request @ all, or failing send response.

either way, problem on server side ... , there's not can without seeing server-side code.