NVR not showing live preview

DS22051999

Young grasshopper
May 22, 2021
33
12
italy
Hi Guys, yesterday I bought an NVR to insert the security cameras I have, NVR works well, except that the live preview doesn't show me the cameras, in fact only one shows me, the others don't, the recording works perfectly, I would like to clarify that remotely it works perfectly

while if I double click on the camera it appears quietly
 
while if I double click on the camera it appears quietly
Two questions:
1. Does the video show when viewing a single camera in full screen?
2. Does no video show when viewing more than 4 cameras on screen?
 
1. When I put only one camera in full screen it looks good

2. When I put it with the grid to 4 cameras two you see and one not.
I would like to point out that the nvr are 4ch 1080p
 
1. When I put only one camera in full screen it looks good
2. When I put it with the grid to 4 cameras two you see and one not
Camera that does not show in 4 grid, does that work in full screen?

I think you have a sub stream issue.
NVR's show sub stream when you view multiple cameras at once.
 
No nvr and the cameras are different, I'm using only onfiv, also I tell you that the CAM 3 you see in the picture and the same camera of the CAM 2 that you do not see
 
I'm using only onfiv, also I tell you that the CAM 3 you see in the picture and the same camera of the CAM 2 that you do not see
Okay, you may need to login to the camera and change sub stream settings.
NVR needs Main stream and Sub stream.
Main stream is full resolution, sub stream is a lower resolution the NVR uses to display in grid view.
 
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In fact I tried to try to reduce the resolution but there is nothing when it comes to the resolution
You do not need to change resolution!

NVR is wanting sub stream. Camera should have setting for sub stream.
 
here are the photos
 

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