Newcomputergen Blogs: 2009-11-01

Cannot open port 80 in DVR

Some internet provider block port 80 due to bandwidth consumption. Our systems are able to change these important ports.

Please follow the steps below and find open ports.

1) Network --> Webcam Server

2) Tab Server, then change HTTP port from 80 to 84 and hit OK to apply. (Note: Instead of using port 80, we can try port 81, 82, 83, 84, 85.)

3) Also, you have to login to the router and change port 80 to 84 on port forwarding. (Note: Fror example, your external IP address is 74.57.26.94, now new one should be http://74.57.26.94:84)

Having Intermittent Blue screen on playback

These blue screens are caused by quick stop on motion that are within the camera field of view. Turning pre and post recoding will stop this issue.

Pre recording will leave the DVR consistently recording but only generate a file once the motion is triggered, in this case you will have a 10sec pre recording

Post recording is a feature that once the motion has a stopped the recording will continue depending on the set time.

Problem: Having blue screen video in the middle of playback. Solution: This is caused by intermittent motion. Go to System Configure

Then activate the Pre and Post recording.

How to change wireless camera channel?

1) Follow the instructions like the diagram shown to take off the hood and cover.

2) Adjust the channel switch as the diagram on the left. (Note: The receiver can only support up to 4 cameras working at the same time. An dmake sure all four cameras should have their own set of channel frequency.)