@Clive_A Succeeded! Thank you for your attention to the solution!

@Clive_A Thank you for your reply. When connected locally, I was able to view camera images without any problems. The attached image is an image of the NVR when viewed remotely.

We have confirmed that you can connect the camera and PC directly to the NVR and view the camera images. However, when I installed an NVR and a camera in a remote location using a gateway that...