Unifi

Unifi Motion Detection Not Working? 7 Fixes That Actually Work

Unifi motion detection not working? Try these targeted fixes to restore alerts and monitoring. Our guide covers brand-specific tools and diagnostics for quick resolution.

Is this your issue?

Motion alerts not triggering despite camera being active
Live view shows motion but no alert is sent
UniFi Protect app displays 'No motion detected' for active cameras
Camera shows as 'offline' in the app but is physically connected
Motion detection zones are not respected by the camera
Camera detects motion only during specific times of day
No recording occurs even when motion is detected

Sound familiar? The guide below will help you fix it.

Unifi Motion Detection Not Working? Try These Targeted Fixes

If your Unifi camera is failing to detect motion despite being properly configured, This is a known issue. This guide provides brand-specific solutions using Unifi Protect app features, model-specific diagnostics, and hardware checks unique to Unifi systems. Follow these steps to restore motion detection functionality.

Quick Fixes for Unifi Motion Detection Issues

Before diving into advanced diagnostics, try these immediate checks:

Verify motion detection toggle: Open the UniFi Protect app, select your camera, and navigate to Settings → Motion Detection. Ensure Enable Motion Detection is toggled on. This is a common oversight for G5 Bullet and AI 360 models.
Check LED status: For G5 PTZ models, a solid green LED indicates normal operation. A blinking red LED may signal a firmware issue or hardware failure. Hold the reset button for 5-10 seconds to perform a factory reset if needed.
Confirm power supply: For AI 360 models, ensure the PoE switch is functioning correctly. A faulty power supply may disable sensors. Check the transformer voltage at the junction box — it must supply 16-24V AC.
Restart the UniFi Protect app: Force-close the app on your smartphone and reopen it. This resolves temporary glitches in the Device Health dashboard for G5 Turret Ultra models.
Verify app login: Ensure you're logged into the correct UniFi account. Motion detection settings may be disabled in secondary accounts.

Detailed Unifi Troubleshooting Guide for Unifi Motion Detection

Check Your Unifi Camera's Wi-Fi Band Settings

Unifi cameras require stable connectivity for motion detection to function. Follow these steps:

Open the UniFi Protect app and select your camera.
Navigate to Settings → Network.
Ensure the camera is connected to the 2.4GHz band. G5 PTZ models may experience instability on 5GHz networks.
If the camera is on a 5GHz band, switch it to 2.4GHz. This is critical for AI 360 models using PoE 802.3af.

Monitor Signal Strength via Device Health Dashboard

Weak signal strength can disable motion detection:

In the UniFi Protect app, go to Device Health.
Check the Signal Strength indicator for your camera. A value below -70dBm may cause intermittent connectivity.
If signal strength is poor, move the camera closer to the router or install a Wi-Fi extender. For G5 Bullet models, ensure the Ethernet cable is not damaged.

Update Firmware via UniFi Protect App

Outdated firmware can cause motion detection failures:

Open the UniFi Protect app and go to Settings → Firmware Updates.
Check if your camera has pending updates. For G5 PTZ models, ensure the firmware is compatible with the camera's hardware.
Perform the update. This is essential for AI 360 models using 1920x1920 resolution at 30fps.

Verify Storage Configuration for Unifi NVR Systems

For cameras connected to a UNVR Pro system:

Open the UniFi Protect app and navigate to Settings → Storage.
Check the RAID status. A degraded RAID array may prevent motion detection from functioning properly.
Ensure all drives are healthy and configured correctly. This is critical for G5 Bullet models using microSD cards.

Perform a Factory Reset on Unifi Cameras

If basic steps fail, reset the camera using model-specific procedures:

G5 Bullet: Press and hold the reset button for 5-10 seconds until the LEDs indicate the restore has begun.
AI 360: Hold the reset button for 5-10 seconds. The camera will reboot and revert to factory settings.
G5 PTZ: Follow the same reset procedure. After resetting, re-pair the camera to the network and update firmware through the UniFi Protect app.

Advanced Diagnostics for Persistent Unifi Motion Detection Issues

Analyze Diagnostic Logs in UniFi Protect

If motion detection continues to fail, check the Network diagnostics tool:

Open the UniFi Protect app and select your camera.
Navigate to Settings → Network diagnostics.
Review logs for any errors related to motion sensor calibration or firmware compatibility. This is particularly useful for AI 360 models using PoE 802.3af.

Contact Unifi Support with Specific Details

If troubleshooting fails, provide detailed information to Unifi support:

Include the camera model (e.g. G5 Bullet or AI 360).
Share diagnostic logs from the Protect app.
Mention if the issue occurs with 2.4GHz or 5GHz bands.
Provide firmware version details (ensure it's up to date).

Hardware Fault Diagnosis for Unifi Cameras

For persistent issues, check for hardware faults:

G5 Bullet: Inspect the camera for physical damage or moisture ingress. UK's high humidity (70%+ year-round) can cause condensation.
AI 360: Verify the PoE cable is properly connected. Faulty cables may disable sensors.
G5 PTZ: Check the camera's IP66 weatherproof rating. Ensure it's installed in a sheltered location to avoid UK's frequent rain (150-200 days/year).

Understanding the Root Causes of Unifi Motion Detection Failure

Motion detection failure on Unifi systems often stems from a combination of factors:

Firmware incompatibility: Outdated firmware on G5 PTZ models may disable motion detection features.
Network instability: Weak Wi-Fi signals (below -70dBm) prevent the camera from communicating with the UniFi Protect app.
Hardware degradation: Prolonged exposure to UK's maritime climate (70%+ humidity) can cause condensation on AI 360 lenses.
Storage configuration: A degraded UNVR Pro RAID array may prevent motion detection from functioning properly.
Sensor calibration: Motion detection sensors on G5 Bullet models may require recalibration after firmware updates.

Protecting Your Unifi Investment for Unifi Motion Detection

To avoid future motion detection issues:

Regular firmware updates: Ensure all Unifi cameras are on the latest firmware version through the Protect app.
Optimal placement: Install cameras in sheltered locations to avoid UK's high humidity (70%+ year-round) and frequent rain (150-200 days/year).
Signal strength monitoring: Use the Device Health dashboard to ensure signal strength is above -70dBm for all cameras.
Storage maintenance: Regularly check UNVR Pro RAID status and replace faulty drives promptly.

Full disclosure: we built scOS to address exactly this — the frustration of cameras that depend on Wi-Fi to function. scOS uses permanently powered cameras connected via ethernet.

When to Replace Your Unifi Motion Detection System

If troubleshooting fails and motion detection remains non-functional, consider replacement:

Battery-powered cameras: Replace after 3-5 years as battery capacity degrades. G5 Bullet models typically last 5-8 years.
Wired cameras: Replace if sensors fail or firmware becomes obsolete. AI 360 models may require replacement after 5 years.
UNVR Pro systems: Replace if drives fail or RAID configuration becomes unstable. Surveillance-rated HDDs last 3-5 years.
UK consumer rights: Under the Consumer Rights Act 2015, you have up to 6 years to claim faulty goods (5 years in Scotland).

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Frequently Asked Questions

Motion detection failure often stems from firmware updates, sensor calibration, or app configuration. First, verify the motion detection toggle is enabled in the UniFi Protect app. Then, check the Device Health dashboard for any network or storage alerts. If all appears normal, perform a factory reset on your camera using the model-specific reset procedure. Re-pair the camera to the network and update firmware through the Protect app. If issues persist, contact Unifi support with your diagnostic logs from the Network diagnostics tool.

For Unifi G5 Bullet or AI 360 models, poor Wi-Fi signal can disable motion detection. Access the Protect app → Device Health → Network diagnostics to check signal strength. Ensure your camera is within 15-20m of the router, avoiding metal obstacles. If using a G5 PTZ, confirm the camera is on a 2.4GHz band as 5GHz may cause instability. Adjust the camera's position or install a Wi-Fi extender if signal strength is below -70dBm.

Unifi cameras use UniFi Protect for motion detection settings. Open the app, select your camera, and navigate to Settings → Motion Detection. Ensure Enable Motion Detection is toggled on. Adjust sensitivity levels and verify detection zones are correctly configured. For AI 360 models, check if Smart Detection is enabled for people/vehicles. If using a G5 PTZ, confirm the camera is not in PTZ mode as this may disable passive motion detection.

If your Unifi camera's motion detection fails after a firmware update, navigate to Protect app → Settings → Firmware Updates. Ensure your camera is on the latest stable version. For G5 Bullet models, check if the firmware is compatible with your camera's hardware. If issues persist, perform a factory reset using the model-specific procedure (hold the reset button for 5-10 seconds). Re-pair the camera and update firmware again.

For Unifi AI 360 models, check the Storage RAID status in the Protect app. If the NVR is in degraded mode, motion detection may fail. Ensure all drives are healthy and RAID configuration is correct. For G5 PTZ models, verify the camera's bandwidth monitor is not showing excessive usage. High bandwidth may trigger automatic motion detection disablement to prevent network congestion.

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