How to connect Vivotek Camera from across the internet

I have a Vivotek ND9541 with 6 cameras connected over the LAN and one I would like to connect from a different geographical location over the internet.  Both locations have internet connection with 50Mbps down and 10Mbps up.  My question is on the side where the WAN camera is installed which ports must I forward at the router to the camera in question?  Presently I’ve forwarded 80 with limited success.  Limited meaning the camera will display a brief live feed within the NVR for a few moments but then goes away.  The image will refresh at times but not a steady live feed.  Both internet connections have static IP's.

Thanks in advance.
WAN-Cam-To-LAN.png
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1namylnAsked:
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Tomas ValentaConnect With a Mentor IT ManagerCommented:
For still image viewing you need only http port but for live video you need to forward additional ports - follow documentation - I found :
Which port will be forwarded by router after enabling UPnP port forwarding function of camera?
HTTP Secondary, RTSP, HTTPs, RTP port for video, RTCP port for video, RTP port for audio, RTCP port for audio.
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1namylnAuthor Commented:
Excellent.  Thank you!  I ended up forwarding 80, 8080, 554, 5556 and 5557.  Not certain if they are all needed but added them anyways.  Found the ports designated for streaming under configuration then stream protocols.  Much appreciated especially on a Sunday!
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