BOBBYBRUCE

I am trying to set up remote access to my Lite H.264 DVR. In the instruction book it tells me to get the IP address from the main unit. When I check the LAN set up the IP address is blank. I have connected it to my router via ethernet cable (BT Voyager 2091). Is there a stage I have missed out? I don't know a lot about computers but can usually muddle by. Any help will be most appreciated guys.