Troubleshooting Guide

Difficulty: ★★★☆☆ Moderate

Estimated Time: 15–30 Minutes

Applies To

✔ Hikvision

✔ Dahua

✔ Uniview

✔ Longse

✔ LTS

✔ Reolink

✔ Axis

✔ Hanwha

✔ Most ONVIF Compatible Systems

What Does “Video Loss” Mean?

A Video Loss message on your Network Video Recorder (NVR) indicates that the recorder has stopped receiving a video signal from one or more connected security cameras. This does not always mean the camera has failed. In many cases, the issue is related to power, network communication, cabling, or recorder configuration.

If your business relies on surveillance for security, it’s important to address Video Loss errors as soon as possible to avoid gaps in recorded footage.

Common Symptoms

You may notice one or more of the following:

Black camera image
“Video Loss” warning on the recorder
Camera showing Offline
Frozen live video
Motion detection stops working
Missing recorded footage
Camera disconnects intermittently

Common Causes of Video Loss

1. Loose or Damaged Network Cable

Damaged Ethernet cabling is one of the most common causes of Video Loss.

Inspect for:

Loose RJ45 connectors
Pinched cables
Water intrusion
Corrosion
Rodent damage

If possible, temporarily replace the cable with a known working cable.

2. Camera Lost Power

PoE cameras receive both power and data through the network cable.

Check:

PoE switch LEDs
NVR PoE ports
Power injectors
Camera status lights

A failed PoE port can make a functioning camera appear offline.

3. Network Communication Problems

Changes to your network may interrupt communication between the camera and recorder.

Possible causes include:

IP address conflicts
DHCP changes
Switch failure
Router replacement
VLAN configuration changes

4. Camera Failure

Although less common than cabling issues, cameras can fail due to:

Lightning damage
Water intrusion
Power surges
Component failure
Age

Testing another known-working camera on the same connection can help determine whether the camera itself is faulty.

5. Recorder Problems

Sometimes the issue originates with the recorder.

Potential causes include:

Failed PoE ports
Firmware corruption
Internal hardware failure
Software errors
Overheating

Basic Troubleshooting Checklist

Before scheduling service, try these basic steps:

✅ Restart the NVR.

✅ Verify the affected camera has power.

✅ Inspect visible network cables for damage.

✅ Confirm the network switch is operating normally.

✅ Try another PoE port if available.

✅ Replace the Ethernet cable with a known working cable.

✅ Determine whether one camera or multiple cameras are affected.

✅ Check whether any recent network changes were made.

When Should You Call a Professional?

If the Video Loss error continues after completing the basic troubleshooting steps, professional diagnostics may be needed.

A surveillance technician can test for:

Damaged network cabling
Camera failure
PoE power issues
Recorder hardware problems
Network communication failures
Configuration errors

Prompt diagnosis can often prevent additional downtime and reduce the likelihood of losing important recorded footage.

Prevent Future Video Loss Problems

Many businesses only discover a recording issue after an incident has already occurred. By then, valuable footage may already be lost.

Routine surveillance system inspections can help identify developing issues before they affect your ability to review or export recorded video.

Preventive maintenance may detect:

Offline cameras
Recording failures
Hard drive issues
Storage capacity problems
Network communication errors
Recorder alerts

Never Worry About Video Loss Again

SecureView System Health™

Unexpected surveillance failures can leave your business without critical video evidence when you need it most.

SecureView System Health™ is a proactive surveillance maintenance service that helps identify recording failures, offline cameras, storage issues, and other common system problems through scheduled remote inspections. Rather than waiting until something breaks, routine system health checks help you stay ahead of potential issues and maintain confidence that your surveillance system is operating as intended.

👉 Learn More About SecureView System Health™

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Professional Services

Commercial Security Camera Service & Repair

Need help diagnosing or repairing your surveillance system? SecureView provides professional commercial security camera service, troubleshooting, repairs, upgrades, and maintenance throughout the Tampa Bay area.

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SecureView System Health™

Help reduce unexpected surveillance issues with proactive remote system inspections designed to identify common problems before they impact your business.

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