Hi ..... and this also answers your other post problems .... ip addres is your problem .... none of your cameras or recorder can talk with your network.
Is this a home or business network ?
You will need to change the IP address on the ip cameras to match your network ..... I don’t know how many cameras you have but you need to give them a ip like this
192.168.50.21 for camera 1
192.168.50.22 for camera 2
and so on till you have changed all your cameras
You will need to use a pc or laptop off your network and plug your cameras into laptop 1 at a time to change the IP address.
Use a laptop if can ... not connected to any network .... but wright down its current settings so you can reset it back later
to see the ip of each of your cameras change your laptop IP address
https://kb.netgear.com/27476/How-to-set-a-static-IP-address-in-Windows
in this instruction it is for 192.168.1.10
you need to set it to 192.168.0.10
amd the gateway to 192.168.0.1
then plug cameras 1 by 1 into laptop and change each ip from 192.168.0.1 to
192.168.50.21 for cam 1
now you will see them on your network
..if this is not your own network ..... don’t do anything and talk to the it people ..... if it’s your network for home then your ok following these instructions