What should I do if my Hikvision camera is showing “No Signal” or “Video Loss”? Leave a comment

  • Check power supply: Ensure the camera is powered on and receiving adequate power.
  • Verify video connections: Check that video cables (BNC or Ethernet) are properly connected to the DVR/NVR.
  • Inspect the camera status in NVR: Ensure the camera is correctly added and recognized by the NVR.
  • Restart the camera and NVR: Power cycle both devices to reset connections.

Step-by-step Troubleshooting

1️⃣ Check the Power

  • Ensure the camera is actually powered on.

    • If powered by PoE (Power over Ethernet):

      • Check the PoE switch or the NVR’s PoE port.

      • Try plugging the camera into another PoE port.

      • Verify the total PoE power budget is not exceeded.

    • If powered by separate power adapter:

      • Check the adapter and the outlet.

      • Test with a different known-working power adapter.


2️⃣ Inspect the Cables and Connections

  • For IP cameras:

    • Check the Ethernet cable for damage or loose connections.

    • Swap the cable with a known good one.

  • For analogue cameras:

    • Check both the BNC video cable and the power cable.

    • Make sure the connectors are properly seated.

    • Test with a different coaxial cable and/or balun.


3️⃣ Test the Camera on Another Port or Recorder

  • Plug the camera into a different port on the NVR/DVR.

  • If possible, test the camera on another recorder to rule out a bad port.


4️⃣ Ping the Camera (IP Cameras)

  • If it’s an IP camera on the network:

    • Find the camera’s IP using SADP tool or NVR’s interface.

    • Open Command Prompt and run:

      bash
      ping <camera_ip>
    • If there’s no response, the camera is not connected to the network properly.


5️⃣ Check Camera Settings

  • If the camera is added manually by IP, ensure:

    • The IP address matches the camera.

    • The password is correct.

    • The camera’s encoding (e.g., H.264) is compatible with the NVR.

  • If using plug-and-play, try deleting and re-adding the camera on the NVR.


6️⃣ Firmware Issues

  • Mismatched firmware can sometimes cause compatibility problems.

    • Make sure both the NVR and camera firmware are up-to-date.


7️⃣ Camera Hardware Fault

  • If after all of the above the camera still shows no signal, test another camera on the same port.

  • If another camera works, your original camera may be faulty.

  • If no camera works on that port, the port or the recorder may have failed.

 

 

Hikvision Camera Diagnostic Sheet

Camera Location/ID: ___________________________
Date: ___________________
Technician: ___________________________


Step 1: Power Check

✅ Is the camera powered on?
☐ Yes
☐ No

Power source:

  • ☐ PoE (via NVR/Switch)

  • ☐ 12V DC Adapter

If PoE:

  • Port LED indicator lights up?
    ☐ Yes
    ☐ No

  • Try another PoE port:
    ☐ Works
    ☐ Doesn’t Work

If Adapter:

  • Voltage tested OK?
    ☐ Yes
    ☐ No

  • Tried different adapter?
    ☐ Yes
    ☐ No


Step 2: Cabling Check

✅ Inspect cables and connections:

  • Cable securely plugged in at both ends?
    ☐ Yes
    ☐ No

  • Visible cable damage?
    ☐ Yes
    ☐ No

  • Tried a new cable?
    ☐ Yes
    ☐ No


Step 3: Recorder/Port Check

✅ Test on another port:
☐ Works
☐ Doesn’t Work

✅ Test another camera on this port:
☐ Works
☐ Doesn’t Work

✅ Test this camera on another recorder (if available):
☐ Works
☐ Doesn’t Work


Step 4: Network Check (IP Cameras)

✅ Camera detected by SADP tool?
☐ Yes
☐ No

✅ Camera responds to ping?
☐ Yes
☐ No

✅ Correct IP address and subnet?
☐ Yes
☐ No

✅ Password correct?
☐ Yes
☐ No

✅ Protocol and stream type compatible?
☐ Yes
☐ No


Step 5: Firmware/Settings

✅ NVR firmware up-to-date?
☐ Yes
☐ No

✅ Camera firmware up-to-date?
☐ Yes
☐ No

✅ Camera added properly on NVR?
☐ Yes
☐ No


Findings & Next Steps:





Conclusion:

  • ☐ Camera operational after troubleshooting

  • ☐ Camera likely faulty — recommend replacement

  • ☐ Recorder/port issue — further testing needed

  • ☐ Other: ___________________________

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