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Problem Solved! I got the DVR screens to display on my PC. I emailed technical support for Sentinel CCTV on their website but I got no response. I read the last post Friday evening and then I went back and double checked all settings again Saturday. This is what I discovered in getting everything to work with the model I have. I read the IP address on the DVR and found that there was extra information in the IP address numbers which caused all the confusion on the network. 192.168.001.150 is the default address of the DVR. The true IP address was 192.168.1.5. (I didn't add the extra 00's at any point). Angry IP Scanner made all the difference in the world because I could now see whether or not I really had 3 devices actually present. Thats how I saw the correct IP address of the DVR which wasn't 192.168.1.150 but 192.168.1.5. The DMZ settings or port forwarding had nothing to do with the communication problem. It really was just plug in the router and find the right IP addresses of all the devices. So I set 192.168.1.3 for the PC then 192.168.1.5 for the DVR and 192.168.1.1 for the router with a subnet mask of 255.255.255.0. I used XP TCP/IP repair to reset the TCP and Winsock files on the PC. I rebooted the DVR CCTV and I was in business when I opened Netview on the PC. Thank You everybody that took the time to post in this message and for all the great advice. I appreciate it very much. I hope I can help someone in the future with what I've learned or maybe another issue. Tools I used Angry IP Scanner XP TCP/IP Repair

Thanks for your help.

Do you know anything about Sentinel Products? I mean are they worthy of my business? Seems like this should be plug and play. I've spent to much time on this simple problem already. I've emailed their support but haven't gotten an answer back yet.

I can ping the router and and the PC. I cannot ping the DVR. It almost seems as if the DVR is not connected to the router. I changed the ethernet cables twice. Both cat 5 RJ-45 cables work when I plug them into other networks. I can't get any communication with the Sentinel DVR. It's very frustrating The message I get when I ping the DVR is "Host not found". Anymore suggestions? The DVR is not firewalled. All ports are open. I've power cycled several times. Thanks for the input.

I cannot see any of the cameras on the lan. The ports that must be open are 5000, 5001, 5002, and 5003. The network card I have set a static IP address of 192.168.1.3 and the CCTV DVR is set to 192.168.1.150. I have set the DVR's IP in the DMZ. Everytime I try to view the cameras on the PC the Netview software says error cannot find DVR. I wonder if the DVR can actually transmit data to the PC. The documentation says it can. Do you have any suggestions?

Hi Everybody I have a Senetinel CCTV (SC21FD3044-161) and a Trendnet Router. I have been trying for three days to just PC remote view the video that is on the CCTV. I have tried everything the manual has instructed me to do. Has anyone setup this type of CCTV for viewing on the computer? I have done the port forwarding on the router, opened the CCTV's IP address through the routers DMZ. I'm using Netviwer which is the software that came with the Sentinel CCTV. I get the error message "cannot find DVR" when I try to connect the Netview on the PC. I have pinged the network but the IP address does not show up, when I use IPconfig in dos and it does not ping the message is "Host not found". My network card is fine. The PC is a Pentium 4 1.5 ghz running windows 2000. It's an old setup just to view CCTV video images and video. I have met all the minimum requirements as far as hardware goes. Please, would someone help me to just get the video from the CCTV to show on my PC monitor. Thanks to in advance to anyone that can help me