Android koush/ion post request being blocked by firewall

Question

I'm using koush/ion library to send post request to my server. It works using my home wifi, my friend's wifi, mobile data, and other's mobile data except for the office wifi.

It returns null and I've been wondering why. I somehow manage to print the error and it showed that the WFilter blocked my request. After that, i asked the IT in the office who manages the firewall to see the log of my requests and then saw a streaming request from the koush/ion that causes it to be blocked. When they disabled the streaming filter, i was able to send my post requests again using koush/ion.

My question is, is there something in ion/koush that i can add to my normal code to prevent this from happening? I'm not sure if it involves ports, or something but here's my simple code that works on most internet connections except in my office.

Ion.with(c)
            .load("POST",URL)
            .setTimeout(60 * 60 * 10000)
            .setLogging("ion-geny", Log.DEBUG)
            .progressDialog(pd)
            .setBodyParameter("reading_id", "" + reading_last_id)
            .setBodyParameter("book_id", "" + book_last_id)
            .setBodyParameter("article_id", "" + article_last_id)
            .setBodyParameter("month_id",""+month_last_id)
            .asJsonObject()
            .setCallback(new FutureCallback<JsonObject>() {
                @Override
                public void onCompleted(Exception e, JsonObject result) {
                    Log.e("loggers","loggers : "+result);
                }
            });