How to Swap Ethernet (LAN) Cables to a Working NVR Port to Confirm Video Loss

Super Admin
15 Jul 2026
233 views
NVR8-8580, NVR8-8580RN, NVR8-8600RU, NVR8-8780, NVR8-8780RN, NVR16-8580, NVR16-8580RN, NVR16-8600RU, NVR16-8780, NVR16-8780RN, NVR8-ADVANX, NVR16-ADVANX, NVR-7450, NVR4-7072, NVR8-7072, NVR4-7082, NVR8-7082, NVR4-7085, NVR8-7085, NVR4-7285, NVR8-7285, NVR4-7300, NVR8-7300, NVR16-7300, NVR4-7400, NVR8-7400, NVR16-7400, NVR4-7000, NVR8-7090, NVR16-7090, NVR8-7095, NVR16-7095, NVR4-7200, NVR8-7200, NVR16-7200, NVR16-7250, NVR8-7500, NVR8-8000, NVR16-7500, NVR16-8000

If you are experiencing video loss with one of your NVR cameras, perform the following troubleshooting steps to identify if the NVR LAN port port (channel) is faulty.

video_loss_ethernet_to_cam_port.jpg

How to test

  1. As per image above, swap CH1 (port having Video Loss issue) and CH2 (known working port).
  2. Check the "Video Loss" error again.
    • If "Video Loss" remains on the same channel, then the LAN port of that channel (CH1) is faulty.
    • If "Video Loss" changes to the other channel (CH2), then it's possible that either the ethernet (LAN) cable or the camera is faulty.

TIP: If the above troubleshooting did fix the issue, proceed with the NVR Cameras swap to ethernet (LAN) cable to further isolate the Video Loss problem.

Was this article helpful?

Bu bilgiler sorununuzu çözmeye yardımcı oldu mu?

Still need help?

Uzman ekibimiz size yardımcı olmak için burada.

New Ticket