There might already be a topic on this subject. I just couldn't find any post on it.
I installed a new Fortigate firewall a few days ago. I am running an NVR with 6 cameras (POE). Since I installed the firewall, I see issues with the mobile devices (iphone/IPAD). The Amcrest mobile app works (both are pulling from the NVR in the mobile app device manager, not individual cameras) when first pulling up the cameras. About a minute later, the camera's go offline on the mobile app. I can refresh the cameras, and they stay up for another minute, the goes offline. Anyone seen this when using a firewall?
It looks like the NVR is somehow polling something on the outside that I am not aware of. Just not sure. Any help is appreciated.