In the below line of code to get the data from web service. But its behavior is unexpected. Its return the data 7 to 8 times when I hit through code, but after that connection timeout error. Any Solution??

URL url = new URL(webPage); 
URLConnection urlConnection = url.openConnection(); 
System.out.println("Connection Timeout ===== "+urlConnection.getConnectTimeout()); 
urlConnection.setRequestProperty("Authorization", "Basic " + authStringEnc); 
urlConnection.setConnectTimeout(20000); 
InputStream is = urlConnection.getInputStream(); 
InputStreamReader isr = new InputStreamReader(is); 

It is return the Exception : java.net.SocketTimeoutException: connect timed

out