I am afraid without a thorough diagnosis we are unable to tell you what the fault is and would suggest you take the vehicle to a suitably qualified garage and ask for the fault to be diagnosed. There will likely be a charge for this but at least you will find the underlying cause of ...
If the connect() method is invoked without invoking setHost() and setPort(). The adapter uses the environment properties to connect to the host and port. Code in JCD TCPIPClient_1.connect( "localhost", 9999 ); // send handshake string TCPIPClient_1.sendEnvelopedMsg( "Sun",getBytes() ...