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

dcaccount

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Hello,
I am asking for your help as yesterday I become crazy trying to connect a Dahua POE camera model HFW3441T-ZS to my POE NVR model 4108H-P.

As usual made with the other Dahua cams I have installed, I plugged the camera into a free POE port. But..
The NVR founds it showing its correct model number and MAC address but when added, the status remains red and there are two errors, either "10.1.1.67 offline" or "cannot connect to host".

With the other cams, it was just a plug and play connection, in this case no way.

Can you please advise what I could try?

Thanks for helping,
Daniele
 

bigredfish

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The red indicator usually means the NVR doesnt recognize the camera password. (Assuming cable is ok, which it should be as it’s recognizing the camera)

A brand new camera never hooked up to an NVR will automatically assume the same password as the NVR. So possible this camera had been connected to another NVR at some point.

Best thing would be to reset the camera using the reset button inside the trap door that houses the sd card. Open the access door, push and hold the reset button for a full 30 seconds while it’s connected to the NVR PoE port.

This will reset the camera to factory defaults.

Next quickly remove the camera from the bottom pane by highlighting it and clicking the delete button, then reboot the NVR and let the NVR automatically discover the camera again.
 

Daniele

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The red indicator usually means the NVR doesnt recognize the camera password. (Assuming cable is ok, which it should be as it’s recognizing the camera)

A brand new camera never hooked up to an NVR will automatically assume the same password as the NVR. So possible this camera had been connected to another NVR at some point.

Best thing would be to reset the camera using the reset button inside the trap door that houses the sd card. Open the access door, push and hold the reset button for a full 30 seconds while it’s connected to the NVR PoE port.

This will reset the camera to factory defaults.

Next quickly remove the camera from the bottom pane by highlighting it and clicking the delete button, then reboot the NVR and let the NVR automatically discover the camera again.
Thanks.
I will try and advise.
 

Daniele

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Hello,
this camera is driving me crazy.

I tried as per your suggestion, then I reseted it and tried again but the red status has not changed.

Then I tried something else. I connected the camera to a POE injector and I was able to connect to it (192.168.1.108) and to watch the live streaming.

Then I manually added to the NVR the camera powered by the POE injector and connected to the house main switch. Also in this case the status is red.

This is super strange as I have been able to connect in this way several low budget cameras to my NVR.

Would you have any idea? I actually do not have any other left.

Thanks for helping,
Daniele
 

bigredfish

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Is the password for the direct camera interface the same as the NVR admin password?

If not go into the camera a reset the password to match the NVR then reboot the NVR
 

bigredfish

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I assume no other devices (camera, NVR) are using 192.168.1.108 ?
That is the default IP for all Dahua equipment.

Sounds like the password thing.
 

Daniele

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Hello,
at the end I have discovered that the issue was the NVR too old for the camera. I called an expert guy that helped to connect the camera using the RTSP flow. Eventually I will replace the NVR.

Thanks @bigredfish for your great support,
Daniele
 

riverhigh

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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 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.

If the camera does move to the bottom and is assigned a correct 10.1.1.x address but you continue to get a red indicator, another option is to open the camera access panel, and while still connected to the NVR, press and hold the reset button for 30 seconds. Then unplug it, delete the entry from the registration page, and plug it back in.

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 you to enter the proper credentials already on the camera 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.
 

riverhigh

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  1. 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 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.

    If the camera does move to the bottom and is assigned a correct 10.1.1.x address but you continue to get a red indicator, another option is to open the camera access panel, and while still connected to the NVR, press and hold the reset button for 30 seconds. Then unplug it, delete the entry from the registration page, and plug it back in.

    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 you to enter the proper credentials already on the camera 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.
 

riverhigh

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  • New Dahua DHI- NVR -2104HS-P-12 Problems

Hello, a complete new Rookie here with semiconductor knowledge but nothing about CCTV or networks.
  • Purchased a new Dahua DHI-NVR-2104HS-P-12 (4 channel PoE) and 2 new Dahua IP Cameras 5MP TIOC2 in the UK and they are UK spec. I wanted some reasonable colour cameras and it seemed a good starting point to venture into CCTV.

    • Only when I encountered problems did I find about the IP CamTalk website, which has been very useful.

    • Problem :
    • When using a mouse and monitor and with initial default password provided by Dahua (in the Dahua NVR box) was able to get the 2 cameras operational, but only offline. I cannot log in by using the admin password , WebGUI or Smart PSS. On set up of the NVR I don’t recall the wizard asking the 3 security questions. I only found them later when looking at the NVR settings, but to date have not completed them in case the system crashes.

    • The NVR reserved email request is activated.
    • I can log in to the NVR only by using the Pattern and the NVR remains offline.
    • The Cameras on the NVR are showing under Port 1 and Port 2 rather the port 37777 which I believe is OK.
    • I installed DMSS on my cell phone and iPad and with NVR P2P enabled could see both my cameras. I could talk and listen to them via the cell phone.
    • For security, I changed what I thought was the original default admin password on the NVR. Then on DMSS both my cameras went offline, but I can still see them via a monitor on the NVR. I didn’t' know whether to delete DMSS on the cell or Ipad in case it corrupted the NVR setup. (I have now unselected P2P on the NVR as I have read of the security risk).
    • Only when the NVR boots up do I get a positive “ping “returns for 50ms total. All other times it says “request timed out”.
    • Not sure when you change password on the NVR you should also change the pattern or are they totally independent.

    • Suspect it may be a corrupted admin password but now am at a loss what to do.
    • I am not so keen to do a total reset as I currently have the 2 cameras giving live views and recording /playback. I don’t want total reset in case I crash the total system and it cannot be recovered. (From what I have read it seems NVRs/Cameras can get bricked if something is done incorrectly).
    • If I have to reset is it better:
    • Use the DMSS app option, scan the QR code for binding on the NVR and use the reserved e mail to reset.
    • Try Resetting the NVR back to Dahua Default or Factory Default condition. If so should you disconnect the cameras before doing a total NVR reset.
    • Does anyone have any ideas on what the problem can be, not getting the NVR online and how to rectify.

    • Thank you
 

riverhigh

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Thanks. I read most of these but found them not to be very user friendly especially when you have an issue..
 

SpacemanSpiff

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  • For security, I changed what I thought was the original default admin password on the NVR. Then on DMSS both my cameras went offline, but I can still see them via a monitor on the NVR. I didn’t' know whether to delete DMSS on the cell or Ipad in case it corrupted the NVR setup. (I have now unselected P2P on the NVR as I have read of the security risk).
DMSS needs a password to access the NVR system and/or cameras. When you change the password on the NVR, you also need to update the DMSS app to use the new password.
 
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