ETKCCTV

I need some help in determining what's causing the following behaviour with my CCTV System... Internet setup is fine (DDNS, Port Forwarding) When i connect to the CCTV system thru the Internet, i'm able to connect without a problem, i supply server name, user and password and everything starts working correctly, i can see the images from the cameras, theres movement, but after a while (about 1 minute) i receive a message saying that i have been disconnected from the server.. and i keep getting the message window continously until i close the browser Im not sure if its a configuration with the DVR software or Bandwidth issues, or maybe router configuration... Total of 12 cameras Internet Connection ADSL Any ideas of whats going on??? Thanks in advanced