Please HELP!

So to start off, I'm new to security cameras. I'd say I'm alright with computers, im not a coder or anything but I understand the basics.

So I got a free 1080p ezviz camera system, bought a building and it came with it. Well I took the cameras to my house and set them up. Picture looks great, but I could not connect to it remotely because the previous owner had an account setup to that dvr. I did plenty of research, I was able to reset the local account on the dvr but could not reset the "cloud" account registered to the serial number of that dvr. I finally gave up on it and decided to buy a new dvr with 8 inputs instead of just the 4. I had some extra cameras that id figured I would use. So the new dvr arrived. Got it hooked up and theres no video on the cameras, I know the cameras, wires and power supply work because i can plug it into the old dvr and it works fine. I tried plugging in the extra cameras I have and they worked fine.

The cameras that dont work are the ezviz/hikvision 1080p 2.8mp nc cameras.

The cameras that do work are a zmodo, not sure if theyre 720 or what.

I ordered the new dvr from amazon, after reading reviews and looking through various dvrs this seemed like it would work with my cameras and was a good deal. Here is a link to it http://a.co/iUSQFyM

So Im not sure if theyre are settings I need to change for it to work with my cameras or should I send it back and find a different dvr. Please help me, thanks!

Hi. You have bought a analog dvr that will take only 2 ip cameras

The ones working ... are they connected by bnc ?

Your ezviz no point using cameras controlled by a 3rd party in China. Don't open your home network to a China server. For cloud

They are connected by bnc.

Both the ezviz camera and the other camera are bnc. On the same cord and same input, one will work but the other will not. I know both cameras are good though, because they work on the old dvr.

The cameras you had are probably HDTVI 1080p cameras, and the DVR you have purchased does not support it.