Why my javascript console says that web sockets are closed or already in closing state?

Question

I am creating a chat application for my company, I am facing an issue that Web Socket is closed or already in closing state, whenever I try to connect. But the scenario is that the same source code same application is working fine on my friends laptop even its working fine on my office laptop, But in my home laptop it's giving me this error, I don't know that what's happening.

here is my ChatSocket.js code

var chatsocket = function() {

var messageReceive = "";

var ws;

var messageSend = function(message) {
    var buildMessage = "<div class='row msg_container base_sent'>"
            + "<div class='col-md-10 col-xs-10'> "
            + "<div class='messages msg_sent'>" + "<p>" + message + "</p>"
            + "<time datetime='2009-11-13T20:00'>Timothy • 51 min</time>"
            + "</div>" + "</div>" + "";
    var imgMessage = "<div  class='col-md-2 col-xs-2 avatar'>"
            + "<img src='http://www.bitrebels.com/wp-content/uploads/2011/02/Original-Facebook-Geek-Profile-Avatar-1.jpg'class='img-responsive ' />"
            + "</div>" + "</div>";
    return buildMessage + imgMessage;
};

var messageReceive = function(message) {
    var imgMessage = "<div class='row msg_container base_receive'>" +
            "<div  class='col-md-2 col-xs-2 avatar'>"
            + "<img src='http://www.bitrebels.com/wp-content/uploads/2011/02/Original-Facebook-Geek-Profile-Avatar-1.jpg'class='img-responsive ' />"
            + "</div>";

    var buildMessage = "<div class='col-md-10 col-xs-10'> "
        + "<div class='messages msg_receive'>" + "<p>" + message + "</p>"
        + "<time datetime='2009-11-13T20:00'>Timothy • 51 min</time>"
        + "</div>" + "</div>" + "</div>";
    return imgMessage + buildMessage;
};

var connect = function() {
    var user = $("#user").val();
    try{
        ws = new WebSocket("ws://localhost:8086/EnterpriceChat/chat/" + user);
    } catch(err) {          
        console.log("error");
    }
    ws.onmessage = function(event) {
        var message = JSON.parse(event.data);
        var idSuffix = getElementIdSuffix(message.from);
        createNewChatBox(message.from);
        var msg_panel_id = getMsgPanelId(idSuffix);         
        $("#"+msg_panel_id).append(messageReceive(message.content));
    };

};

var sendMessage = function(element) {
    var inputElementId = element.attr("data-id");
    var to = element.attr("data-id-email");
    var msg_panel_id = element.attr("data-id-msg-panel");

    //Validating the inputs
    var content = $("#"+inputElementId).val();
    //Reset the input fields
    $("#"+inputElementId).val('');
    if(!content) {
        return;
    }

    var json = JSON.stringify({
        "to" : to,
        "content" : content
    });

    ws.send(json);
    $("#"+msg_panel_id).append(messageSend(content));
};

var eventClick = function() {
    $('.btn-chat-send').unbind('click');        
    $('.chat_input').unbind('keypress');

    $('.btn-chat-send').click(function() {
        console.log();
        sendMessage($(this));
    });
    $('.chat_input').keypress(function(e) {
        if(e.which == 13) {
            $(this).closest('.input-group').find('.btn-chat-send').click();
        }
    });     

};

return {
    initEvent : function() {
        connect();
    }, initAction : function() {
        eventClick();
    }       
}
}();

But I don't think that my code have issue, because it is running well on other computers.