iVMS4500 for Android

Does anyone know if there is a detailed 'How to' page/video anywhere that shows how to set up iVMS4500 or iVMS4200 on an Android phone.

I thought that I had followed carefully the instructions that I have found but, I always get a 'Connection Failed' message

My cameras are connected directly to my NVR and so I am using that IP address to enter into the configuration of iVMS app.

Any thoughts anyone?

Thank you