How to use DDNS to connect camera on computer?

DT41Y/DT61Y/DT81Y/DN41R/DN61R/DN81R/DT41GB/DT81GB/DT61GB/DW41JD/DW81KD/DW61LD/DT81DP

1. Access camera on the computer by its IP. Here is the method. 

How to access the camera on the computer browser by its IP and activate it on a computer?

2. Fix system‘s IP so that its IP address won‘t change.

Here is instruction on how to fix the system‘s IP. 

How to fix DVR/NVR's IP? (DN41R series)

3. Go to DDNS setting to create a DDNS domain. The status must be normal.

Notice: if your network‘s external IP is static, not dynamic, you don‘t need to set up DDNS and you can skip this step.

4. Use a computer to go to the router‘s page to do port forwarding with DVR‘s IP, HTTP port

，rtsp port and server port

You can get some help with

how to do port forwarding here. 

https://portforward.com/router.htm

After you finish port forwarding, you can open www.canyouseeme.org to check if the port is open.

Finally, if DDNS and port forwarding succeed, address like www.simpleddns.com/annkesupport can be opened anywhere on any computer.