Followed Marku2 and tried my Google browser
Mark said "internet explorer11 or palemoon."
If by Google Browser you mean Chrome - that won't fully work with the NVR.
Anyway - I have done some instructions for you for using the Hikvision
tftp updater to try to reset the cameras so that you have a known password for them.
Here they are:
Here are some instructions for trying to use the Hikvision tftp updater tool to install the same 5.4.5 firmware as is already installed.
This will reset all settings to their default value, leaving the camera in an 'Inactive' state.
When in that state, SADP can be used to find the camera, and 'Activate' it, by creating your own strong password, or the NVR will take it over, using the password set for cameras in the NVR configuration.
The required steps are as follows:
Create a folder on your Windows PC, drop the attached tftpserv.zip file in it, and unzip the contents.
Drop the attached firmware file IPC_2XX2FWD_ML_STD_5.4.5_170124.zip into the same folder and unzip the digicap.dav file within it.
Leave Windows Explorer open, you'll need it later.
Unplug the PC from the LAN and plug it into an unused POE port on the NVR. You said you need to unplug a camera to provide an unused port.
Unplug also the camera that the firmware update is going to be tested on.
To run the tftp updater tool, the PC IP address must be set to 192.0.0.128
There is no need to download anything to do this, it's just a network configuration change.
On Windows 7 (you are probably using Windows 10, not something I'm familiar with, but the steps will be similar) do the following:
Windows Control Panel | Network and Sharing Centre | Local Area Connection | Properties
Double-click Internet Protocol Version 4 line.
Select the radio box 'Use the following IP Address' and in the IP address field place 192.0.0.128
Moving down to the subnet mask, use 255.255.255.0
Click OK
Now to run the tftp updater tool.
With Windows Explorer, double-click the tftpserv.exe file that you extracted.
This first time, there should be a Windows Firewall popup saying it has blocked some part of the program.
Click 'Allow'.
The tftp updater window should now be visible, and it should show 'TFTP server [192.0.0.128] initiallised' or similar.
So far, so good.
In theory, all that's required now is to plug the candidate camera back in, and watch the tftp updater window.
If it works OK, there should be several status messages, along the lines of (I don't recall the fine detail) :
Device at 192.0.0.64 test tftp server
Connect tftp server
Downloading file digicap.dav
Downloaded file
But the important status will be :
System update completed
This will take 2 or 3 minutes.
Close the tftp updater.
Start SADP
Unplug and re-plug the camera.
After 20-30 seconds, refresh SADP and check the camera status, looking for 'Inactive'.
If the NVR firmware is new enough - it should automatically connect to the camera, activate it, and add it, in Plug&Play mode.
But before going further, let's see how you get on so far.
Sometimes a POE-connected camera does not work well with the tftp updater tool, in which case the use of a 12v DC supply is needed instead of POE.
