Dahua NVR-NV42A16-P16-4K-S2L setup and the IOS (iPhone) DMSS view

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Parallax1957

n3wb
Apr 4, 2025
18
0
Maple, Ontario, Canada
Hello fine people. I have Dahua NVR-NV42A16-P16-4K-S2L NVR, nine (9) Dahua CAM-IP9138HB-A-PV-28-AI Cameras which was setup and working on their own quiet well.

The DMSS app is giving me a bit of a problem on WiFi or the satellite, perhaps due to the NVR Hardware or the APP setup. When running the app, most of the time 1 or 2 cameras appear visible, the rest are shown with the swirl on the screen. Once pressed on the swirl, the view appears. I have to press sometime on each of the swirl to display each camera.

Please advise on what I am doing wrong, Thanks

Parallax.
 
Not familiar with those camera models but how are you connecting with the app?

Are you port forwarding the NVR through your router? Or using the P2P connection?
 
Hard to say, Obviously a bottleneck somewhere. Could be your upload capacity at the NVR site..Or your connectivity at your remote site, or a piece of equipment....

Port forwarding invites all sorts of bad actors, you could be effectively being DOS'd due to so many hammering your router trying to hack in.
Can you connect on-site local LAN and unplug the Internet connection? Does it make a difference?

Your app apparently is using the P2P method in the profile on DMSS?

I see those are rebranded Dahua cameras, 4K. Very likely just network connection capacity but no telling which end.
Its not likely the DMSS app and assuming you can see the cameras fine locally?
 
The local operation (VGA connected monitor and the mouse) is flowless on the cameras and the NVR. It works on the lan and off-the network. The only problem I have is connecting STEADY with the iPhone. Any idea?
 
The phone and or provider (carrier) can't keep up with a bunch of 4K cams streaming.

Try switching the stream setting on the DMSS profile to substream
 
Parallax1957 said:
I had removed the Router Forwarding, switched to the Sub Stream on Live Video, and yet still has 6 twirls out of 9 on the play screen. Any idea on the APP settings? Thanks
Click to expand...

No setting on the app I can think of is going to effect that other than the stream type.
 
As I asked above, what is your mobile network speed?

The spinny circles is a network/bandwidth issue. Lowering FPS, bitrate, resolution is all that is left if the network is too slow.
 
That appears to be your home wifi speed. And that should be more than enough.

Does the issue also happen at home or only when away?
 
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