No Image from Dahua NVR-4104H & MW Power KIP30-1080P-MZ-RW-W IP Camera: DHCP & Connection Issues

Hello dear forum users.
I bought the recorder a few days ago Dahua NVR-4104H and camera MW Power KIP30-1080P-MZ-RW-W . I came to the conclusion that since I already have the whole set, it would be worth to put it all together.
Everything was going well, but now I have a slight problem with the connection ... Well, when I have selected in the DHCP configuration, I easily go to the page with the panel (internal network) of the recorder configuration, but in the recorder menu I can not connect to the camera IP - the system does not show it to me. However, when I turn off DHCP, I can easily watch recordings from cameras through the recorder, but I do not have access from the computer to the recorder (IP, of course, the same as in the configuration).

Here is the network configuration in the recorder:
Case - No. 1. (DHCP disabled)
--- RECORDER SETTINGS ---
MTU: 1500
[_] LAN download

IP version: IPv4
MAC: 4c [...]
IP address: 192.168.1.108 [_] DHCP
Subnet mask: 255.255.255.0
Default gateway: 192.168.1.1
Preferred DNS: 223.5.5.5
Alternate DNS: 233.6.6.6

--- READING CAMERA DATA FROM RECORDER ---
IP address: 192.168.1.168
Port: 8999

Case - No. 2. (DHCP enabled)
--- RECORDER SETTINGS ---
MTU: 1500
[_] LAN download

IP version: IPv4
MAC: 4c [...]
IP address: 192.168.0.100 [v] DHCP
Subnet mask: 255.255.255.0
Default gateway: 192.168.0.1
Preferred DNS: 223.5.5.5
Alternate DNS: 233.6.6.6

--- READING CAMERA DATA FROM RECORDER ---
After searching, the recorder does not detect any cameras.

----------
[_]

Do cameras have IP from the same DHCP pool as the recorder?

sosarek wrote:

Do cameras have IP from the same DHCP pool as the recorder?

I do not know if we think the same, but the configuration on the router was under IP 192.168.0.1, so I understand that it is about the pool 0 , Yes? Now I changed to 192.168.1.1 and I will try to connect to DHCP again.
I think right

Yes, that was it - set a fixed IP for the recorder and cameras.

Managed to.

One more question - can I connect the PTZ ORLLO IR ROTATION ZOOM IP camera to this recorder? I connect it in the same way as that of the MW Power, it appears on the list of cameras in my network, but after adding it a red "light" in the recorder configuration is lit (it means that the camera is not ready) and the image is missing.

The camera supposedly supports Onvif so it should work, you entered the password correctly?

sosarek wrote:

The camera supposedly supports Onvif so it should work, you entered the password correctly?

And this is so ... I forgot that the camera password is 888888 and not admin.
Thank you very much for your help