Help please HDW5442TM-AS-LED bandwidth issue

M

MrBits

n3wb
Feb 21, 2023
19
8
UK
I would be most grateful for some help please
I have a Dahua 8 port NVR. I have recently replaced the five cameras that were connected to it with the 5442 following recommendations from these forums. They all connect by ip not directly into the NVR.
The problem I am having is one of the cameras will not be recognised. The camera itself is fine.
I believe the problem may be a bandwidth issue. The NVR can manage 208 mbps and with the four that will display it is running at 198 mbps.
I would really appreciate it if anyone could share the sort of settings I would need to reduce the bandwidth to enable the system to run properly, or am in the realms of a new NVR that can handle these - ideally I would like to add another camera to take it to six.
Thank you very much
 
MrBits said:
I believe the problem may be a bandwidth issue. The NVR can manage 208 mbps and with the four that will display it is running at 198 mbps.
Click to expand...

I running at 198 mbps or it have free bandwidth 198 mbps? :)

Can You connect / login from computer to all new cameras to theirs web page / panel?

Did You configure them and setup for each unique IP address in theirs configuration?

Can You show screenshot of Your camera settings page in NVR?

Did You click on Refresh devices on that page and added the new cameras from a list?

Is Yous NVR and cameras on the same VLAN in the same network?
 
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Yes it’s running at 198 so free bandwidth is 10mbps.
All the cameras have there own ip, there’s no issue with access to them. When I swap the camera that cannot be seen with another then it works just fine and is seen with its ip in the NVR. There isn’t a VLAN as they are connected into my network but all are on the same ip range and subnet. It’s just when I connect all 5 it won’t show one of the cameras which I think might be the bandwidth issue.
 
MrBits said:
Yes it’s running at 198 so free bandwidth is 10mbps.
All the cameras have there own ip, there’s no issue with access to them. When I swap the camera that cannot be seen with another then it works just fine and is seen with its ip in the NVR. There isn’t a VLAN as they are connected into my network but all are on the same ip range and subnet. It’s just when I connect all 5 it won’t show one of the cameras which I think might be the bandwidth issue.
Click to expand...

So log to each camera (new and old) and change in camera -> encoding settings bandwidth to something smaller (like 8 mbps in main and 1-2 mbps in sub stream).

210 mbps for 8 cameras is a lot (26 mbps per camera).

If this don't help - and NVR will show wrong used bandwidth - then it can be some error in NVR firmware...
in that situation deleting all cameras, reseting NVR (power off/on) and adding them from scratch should help...
if not - last resort is to use default to factory settings... and then configuring all NVR from scratch...

ps. in case of deleting/adding cameras - please check used/free bandwidth after adding each one camera... this should give you more what is happening...
 
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Something is missing.
There is no way 5 normal 5442 cameras should overload the bandwidth of a 4208 NVR... I've run 12 (mix of 2MP and 4MP ) on a 4116
 
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MrBits said:
Yes it’s running at 198 so free bandwidth is 10mbps.
All the cameras have there own ip, there’s no issue with access to them. When I swap the camera that cannot be seen with another then it works just fine and is seen with its ip in the NVR. There isn’t a VLAN as they are connected into my network but all are on the same ip range and subnet. It’s just when I connect all 5 it won’t show one of the cameras which I think might be the bandwidth issue.
Click to expand...


Are you running SmartCodec on the cameras? - turn it off
Is ROI enabled on them? - turn it off

There's a piece of the puzzle missing, the NVR is quite capable of running those 5 cameras
 
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drop the framte rates to 10 on the 4 cams until you can add a fifth camera. then slowly bring the frame rates back up and stop before you go overboard.
I have 9 cams running on a 4116 using 52Mbps of bandwidth.
most of my cams are about 12 FPS.
 
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