Could not get reponse from my ipcamera

Hellos i could not get response from my ipcamera ,it build with no error but i guess the 
ip address is wrong.How can i get the correct address of my ip camera. Both the ipcamera
and PC are connected to same network named Almajilis.i get the address from my mobile 
that is connected to the same network .i am new to ipcamera i need help many thanks.

using System.Web;
using System.Net;
using System.IO;
..
..
..
    private void ButStartClick(object sender, EventArgs e)
        {
            GetFrame();
        }

        private void GetFrame()
        {
            //string sourceURL = "http://192.168.0.102";
            string sourceURL = "http://192.168.0.102/jpg/image.jpg";
            //"http://192.168.0.102:4747";

            byte[] buffer = new byte[1280 * 800];
            int read, total = 0;
            HttpWebRequest req = (HttpWebRequest)WebRequest.Create(sourceURL);
            WebResponse resp = req.GetResponse();
            Stream stream = resp.GetResponseStream();
            while ((read = stream.Read(buffer, total, 1000)) != 0)
            { total += read; }
            Bitmap bmp = (Bitmap)Bitmap.FromStream(new MemoryStream(buffer, 0, total));
            pictureBox1.Image = bmp;
        }