***PSA for those with a New DAHUA NVR with Built-in PoE switch

avspin

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I unchecked regular and only checked MD. So now it still records constantly but marks when there is motion on playback with a yellow line.
I will consider keeping 24/7 (not that it appears I have a choice) I just need to see how long 16 4K @15fps will keep time wise on 2x 4TB hard drives. This I saw a chart in the wiki.
I was under the impression that recording 24/7 will wear out the PSU, NVR or hard drives sooner.
Thanks
 

bigredfish

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If you look at my post #2 and make the change on all appropriate screens, I can assure you it will only record motion if that’s what you want.
 

looney2ns

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I unchecked regular and only checked MD. So now it still records constantly but marks when there is motion on playback with a yellow line.
I will consider keeping 24/7 (not that it appears I have a choice) I just need to see how long 16 4K @15fps will keep time wise on 2x 4TB hard drives. This I saw a chart in the wiki.
I was under the impression that recording 24/7 will wear out the PSU, NVR or hard drives sooner.
Thanks
Wrong assumption as long as you are using survllience rated hard drives.
 

avspin

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I am using post # 2, I do not have an IVS box so I'm using the first 5 images as a guide. Currently I have the yellow MD box checked only. 24 hour period, main stream is auto and sub manual. Still recording.
 

jutos

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DO NOT follow instructions telling you to use the config tool or switch the IP of your cameras or initialize anything..!

With NVR's typically with a -P designation (Built-n PoE switch - example: 4208-8P-4KS2) none of that is required and it will often make a mess of things.

If you have a Dahua NVR with built-in PoE switch

*On initial setup for the NVR and cameras, DO NOT enable P2P in the popup that asks you this. Uncheck that along with Auto updates.

1- Fire up NVR using a mouse and monitor to do the initial setup, security questions, password, leave default Networking/IP alone (Verify it is static IP at 192.168.1.108 - assuming a standard home network of 192.168.1.x ), If you wish you could change the NVR IP address to some other static number on the 192.168.1.x network, This might be helpful if you were to add other Dahua cameras later outside of the built in PoE ports via say an external PoE switch as Dahau cameras connected this way will also default to the .108 address and create a conflict. . (I like to use .254 as I’ve yet to see that get assigned randomly by the router DHCP pool in a normal home environment)

Then disconnect from the NVR and never go back to that machine interface. Dont try and make any other setting changes here. You can change it all later in the Web interface.

2- Plug in your cameras to the NVR. Dont do anything else. The beauty of a PoE NVR is you dont have to do a damn thing, just plug them in, dont go clicking on buttons and shit when you dont know what youre doing, It WILL F$@k things up.

*Dont try to manually add them or force them to the bottom pane. Wait. Sometimes it takes a bit.

3 Open a browser on a PC on your network (again assuming a standard home network of 192.168.1.x) and type 192.168.1.108 or the IP you changed it to, and hit Enter. You will go to the WebGUI interface of your NVR. This is how you will manage your NVR from now on. Login with the name and pass you assigned the NVR

4- Assuming the newer 4.0 dark interface, Choose "Management" at top left then "Camera". This will take you to a page (Registration) that looks like the thumbnail below. The NVR will have automagically assigned each camera a channel and an IP address in the 10.1.1.x range** and a port of 1,2,3 etc.. You can NOT access the cameras without going through the NVR interface and using the Blue IE icons. See thumbnail below. (well you can access them but its a PIA and not necessary)

5- Click on the BLUE IE icon to open the individual cameras Web GUI to make changes to your camera settings, IVS, etc. The login for each new camera will default to Admin/your NVR password
The Login and Password for each camera will be identical and the same as your NVR. Dont F$@K with them!
*On initial login/setup for the cameras, DO NOT enable P2P in the popup that asks you this. Uncheck that along with Auto updates.

View attachment 58246

* It seems some older cameras and/or cameras that had already been initialized with another NVR, may retain their "old" password, but new Dahua cams out of the box will assume the same login credentials of the NVR via synching.
If you see a red dot next to a camera, and/or a gray IE icon that does not open the camera GUI in a new window as expected, its likely that the password on the camera is different than that of the NVR. If so, using the "pencil" icon, edit the password information for that camera to the "old" password you may have previously set on another NVR or installation.

*The Edit dialog does not change anything on the camera. It simply allows you to edit the information of the camera that the NVR uses to communicate with the camera.

View attachment 66178

Notes

A -When you go to the camera registration page, do not try and add cameras attached to the built-in PoE ports manually to move them from the top pane to the bottom. Let the NVR do it automagically, May need to unplug them and reboot once. WAIT! It may take a few minutes for them to appear in the bottom pane. DO NOT be tempted to manually add them or move them from top to bottom panes.

B- If using a Dahua NVR with the bullt in Poe switch, cameras using the built in PoE ports and showing port 37777* can’t be reached via the interface (IE button) as noted. Usually see this if you try to add them manually from the top pane to the bottom. (Or if you are using a splitter or extender and trying to run multiple cameras off of One PoE port. I dont recommend it) If you let the NVR assign and pass credentials by itself, they’ll show up as port 1,2,3 etc and you’ll be able to access them via the IE button

*UPDATED:
When using the built-in PoE ports, the NVR will assign them an IP (10.1.1.x) and a local port (1,2,3) and they will automatically populate the bottom pane as described above. You cant add them manually or it will mess up.

On cameras connected via external switch (like the ones shown at 192.168.1.x in the thumbnail below) you search for them in the top pane, and then have to add them to the bottom manually. These cameras connected via external switch will use port 37777. These you need to add one at a time and login to the camera and assign it an IP other than 192.168.1.108 as that is the default IP for all Dahua cams. Then add another and assign it another IP and so on, one at a time.

Also, cameras using an external switch CAN be accessed directly via their IP address.

View attachment 66033

C- I’ve found it works best not to mess with any settings other than Network and Recording schedule on the NVR. I make all Image, Exposure, Event, and FPS/Bitrate changes on the camera itself >>>> and it pushes them to the NVR fine. Making image and Event changes on the NVR does not always push them correctly to the camera however.

D- For day to day viewing/playback and downloading of clips on your home network, simply download and install Dahua SmartPSS on a computer on that network and use it. This is simpler and better than trying to use the NVR web interface all the time just to view cameras or download footage. That said, dont try and use SmartPSS to adjust or mange the camera image or Event/MD/IVS settings Do this on the camera itself.

E) Note: Its best to limit changes to Image, Encoding, Bitrate/FPS, IVS, Motion Detection, etc to one device or the other, I recommend using the camera interface. If you make some changes on the camera and others on the NVR, it will mess up something eventually



Questions:

Does the pencil icon pop-up on the nvr camera registration page modify the camera password or is that only so you can login into the cam?
It just allows the proper credentials for the NVR to communicate with the camera, it does not modify the login/password of the camera

You said when you plug a cam into the NVR it changes the camera password to the nvr password but i didnt' find this to be true.
On a new camera or one factory defaulted and using the built-in PoE ports on the NVR, I can assure you it assigns the NVR password to the camera. If you have changed the camera settings somehow directly, installed the camera on another NVR previously, changed the IP or messed with onvif or ports, it may not adopt the NVR credentials and you may need to A) use the "old" password you originally set for the camera, or B) factory default the camera and start over.

If my cameras are now on the NVR private network of 10.1.1.x how can I view them without going through the NVR interface first?
The same way you would with an NVR without built-in PoE ports. By using SmartPSS (desktop), or the Dahua Mobile apps DMSS, iDMSS or gDMSS. They will "see through" the NVR to allow you to view your cameras. Remember, use these apps to view and download video clips. If you want to make changes to the Image, Events etc, do it on the camera itself.

Can I still use a VPN? Wont that be a problem again with the cameras on the 10.1.1.x network?
Yes. You will access them the same way as above. The VPN puts you inside your network as if you are sitting at your desk at home.

Remark to VPN configuration on the router:
If your router has under InternetStatus -> WAN IP -> the PRIVATE IP Address (10.x.x.x, 192.168.x.x, 172.16.0.0 - 172.31.255.255) it means you are not able to setup VPN server on the router . First you will need to ask Internet Provider for PUBLIC IP address what sometimes is not a best choice and additional fees are behind.

At the end if you want to view/access your cameras outside of your home network, you will not have other choice as activate P2P.
 

Mark_M

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Ditto. I’ve had same problems with Axis cameras on Dahua NVR
In my experience with forcing onvif in a dahua nvr, continuous is all you get. It will not log motion events.
Same experience here with an Axis camera connected.

Question I have is accessing this ONVIF camera through the NVRs IP address.
In Internet Explorer, Dahua cams open through the NVRs IP (192.168.0.90/xxxx).
But my Axis camera's "open camera" link redirects to the cameras IP on the switch (10.0.0.20) which isn't accessible outside of this 10.0 LAN.
Same issue applies if I set the camera manufacture to Axis.

Is there anyway to fix this or is it another con to using non-dahua on this NVR?
 

bigredfish

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I wish i could recall, I no longer have the Axis cam hooked up. I know I used the Axis profile. Seems to me I had to be VPN'd in putting me on the 192 network, and I was still able to open the Axis the same way as the Dahuas with the blue IE icon on the registration page...
 

wozzzzza

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If you look at my post #2 and make the change on all appropriate screens, I can assure you it will only record motion if that’s what you want.
what i dont get is step 4, there is no squares i can find to fill the screen with to select where you want to detect motion?? all i can do is draw, then when i hit save it says "please draw" and i dont know what to do to save it.
 

wozzzzza

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what ever happened to the good old motion detection selection where we could go there, select the boxes in the areas we wanted to detect motion and save it.???
 

catcamstar

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If it ain't working on your pc (browser), hook up an HDMI screen and USB mouse and do it on the NVR itself. Piece of cake!
 

bigredfish

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what ever happened to the good old motion detection selection where we could go there, select the boxes in the areas we wanted to detect motion and save it.???

Old fashioned motion detection is still there, works like it always did and still sucks.
Use IVS rules instead. Not unique to PoE NVRs. Google Dahua IVS or search the forum.
 

Mlda

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Shockwave 199 - your answer is appreciated.

bigredfish - I agree, Andy is right that it may save me possible troubles down the road. But if I understand you correctly, you would 1st plug them in ONE AT A TIME and see if they are recognized, check to see if the NVR MAY assign them the 101.1.1x, and edit the correct login/pass if necessary.

If I go Andy's way.......obviously I leave the cams plugged in while doing the NVR factory default (making sure the camera box is ticked), but at what point do I unplug the cameras? The NVR I believe automatically restarts after the factory default process, so do I unplug cameras when it gets to the initialization step?
I am running a 5416-16P NVR, system version 3.216.0000000.0.IMG_20210312_110121.jpg
Can't find factory default. Using the "normal" default only defaults the credentials that the NVR uses to access the cameras, that is username and PW. In case you have a different pw on the camera, the NVR forgets it and you'll have to introduce it again (pencil icoon).
 

Andyh747

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Thanks for all the great tips and advice in this thread.
I’m installing a 17 camera system on a PoE NVR. The NVR has 16 PoE ports for cam connection. I have two cameras on a 60m run with a single CAT6 to the location. I’m hoping to run two cameras off one PoE port on the NVR via a small Poswitch.
My question is will the NVR power up the switch as well as two cams? The first 8 ports on the NVR utilise Dahua PoE+ or whatever they call it to extend the effective range of PoE. I’m wondering if anyone has used this to power a PoE switch as well as the cams? I’m using a Ubiquiti UniFi Flex switch and want to avoid an external power supply. Obviously I can use the main PoE switch on the LAN and add the cameras this way but I am curious whether the Dahua NVR can do the same via its PoE ports?
Thanks for any info.

NB: Just for clarity this switch can be powered via PoE as well as provide PoE power to devices connected to it.
 
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