How to make Home Sharing working again

I suddenly had an urge of trying out my headphone on my iPad 2, and that's when I realized that the HomeSharing did NOT work on my iPad.  After messing around for a while, I finally got it fixed.  The problem is on the iTunes (on the server), and to make it working on my iPad, all I needed was to turn OFF homesharing, and then turn ON again.

For more information, read this.