Live View stuttering

[__CA__]

Hi

When I try and view Live View through the iVMS-4200 client or Internet Explorer (on the same network as the NVR, not remotely), the feed comes up but freezes after 2 seconds, then gets going again after 5-8 seconds, but freezes again. If I change to a sub-stream (in IE, I can't see how to do this in iVMS) the quality is greatly reduced, but it runs smoothly.

So it feels like a bandwidth problem, but if I switch to playback mode it will play normally even at a decent resolution (there's a delay in bringing up the selected time point, but once it's playing, it's fine).

Surely Live View can be viewed at a decent resolution when I'm on the same network? I can forgive it not playing HD on a mobile network!

Thanks

 

[Magic919]

It does sound like a bottleneck. I presume you have a few cameras. Can you unplug some from the NVR and retest?

 

[Phil]

Hi @__CA__ It could perhaps be a network problem.
Check your camera's IP address (make sure you haven't accidentally duplicated it i.e. used the same IP address for two devices), check you have entered a gateway address and DNS address.

 

[__CA__]

Thanks for your help... I only have one camera for now, a DS-2CD2185FWD-I 8MP connected to a DS-7608NI-I2-8P NVR.

The camera's IP is 192.168.254.5 - it doesn't appear to be duplicated, the 8 channels under Settings > Camera Management are all unique. Everything else connected to the router has an IP address 192.168.0.xx

The NVR is 192.168.0.22

The IPv4 Default Gateway address (found on Network > Basic Settings) is 192.168.0.1

Preferred DNS server is the same, 192.168.0.1

I seem to remember I changed the DNS server to Google (8.8.8.8?) at some point whilst trying to set up remote access, before I realised Hik Connect was the way forward. 'Auto DNS' is unticked currently.

As an aside, if I use SADP, I only see the NVR, no other devices. Is this normal? I seem to remember during the intial setup / activation the activation of the camera was handled by the NVR, rather than plugging the camera into the PC direct and I've never seen it in SADP.

 

[Phil]

As an aside, if I use SADP, I only see the NVR, no other devices. Is this normal?

Yes.

 

[Phil]

All that you mention looks fine.

Is the camera installed on a home-made network cable?
I have seen cable problems limit bandwidth / prevent max resolution a number of times.
You can test by fetching the camera close to the NVR and using a short bought patch cable.

 

[__CA__]

Yes, it's Cat6 cable from Amazon... link

Maybe it's cheap rubbish?! I'll try a patch cable as you suggest, thanks Phil.

 

[Magic919]

Some of the comments suggest that is copper coated aluminium, which is not great. I've used these terminated ones up to 4M pixel and about 25m. 5m - 100m Black External Outdoor Network Ethernet Cable Cat6 100% Copper Lot | eBay

 

[Phil]

Yes, they sneaked-in the acronym CCA (Copper Clad Aluminium) in that Amazon description:
CCA Cable: 5 Reasons To Stay Away

 

[Magic919]

More an initialism than an acronym, but I take your point.

 

[Phil]

An interesting article on resistance unbalance due to poor cable / installation / termination:
https://www.linkedin.com/pulse/resistance-unbalance-why-its-important-measure-chuck-dykstra/