Application Based On Qxmpp Can't Connect To Server On Android, But Working Well On Windows

I'm using qxmpp library in my project. I've tried to write simple app to find out if it connects to server. It connects on Windows well. Then I've tried to test it on Android, but

Solution 1:

That was because of QDnsLookup was not developed for Android. And i pass this problem by using IP address of my own servers. (Its didn't work by Google servers using ip address)