Running AS/400 Program Remotely Connection gets Hang!

Hi Experts!
I am using jsp  to connect DB2 Universal database for iseries, but my application is hanging while trying to connect to the 400. No exception is returned - it just sits there. I have no real knowledge of the 400 side of things so I don't know how to log user activity to see what is going wrong or anything.

I have checked with debugging on the line connection1 = d.connect(o,p,"xxxxx"); it gets hanged. please help me out of this problem.

Connection connection1 = null;
		 
		
	     AS400JDBCDriver d = new AS400JDBCDriver();
	     Properties p = new Properties();
	
	     AS400 o = new AS400("HOSTSEVRENAME");
	
	     p.put("user", "USERNAME");
	     p.put("password", "PASSWORD");
	     try
	     {
	    	 connection1 = d.connect(o,p,"LIB");
//on this line the application gets hang
 
	     }
	     catch(SQLException sr)
	     {
	    	 try
	    	 {
	    		 connection1.close();
	    	 }
	         catch(Exception e)
	         {
	        	 response.sendRedirect(response.encodeRedirectURL("login.jsp?action=efailed_" + e.getMessage()));
	         }
	         response.sendRedirect(response.encodeRedirectURL("login.jsp?action=srfailed_" + sr.getMessage()));
	     }

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