NVR Remote View - Problem

[simste]

Hello, unfortunately i don't have time to look around forum and i have urgent problem with remote view.
from mobile, i see only 1 cam of the different one connected. If i connect by lan, i'm able to manage and view all of them. Where i'm mistaken?
Thanks in advance!

p.s.
logging remotel via web, i'm forwarded straight to the cam, also if the router points to the nvr (dmz). Seems that nvr forward to the that cam

 

[bababouy]

are you using port 80 for all cameras?

 

[cctvnerd]

Manufacture? App that are using?

 

[simste]

I just have found the problem! Upnp override the DMZ: port 80 of NVR was forwarded to the cam . I'm using tplink router. It was the first time that happened (system was working since 1 year and all of this came out after the upgrade of NVR, coincidence)