How to Fix UniFi Protect Motion Detection Not Triggering
- Detection zones not set / too small
- Sensitivity too low
- Recording mode not set to detect motion
Problem Description
UniFi Protect is not detecting motion — no motion events appear in the timeline, no notifications are sent, and motion-only recordings are not being created. Motion detection may be disabled, sensitivity may be too low, motion zones may not cover the active area, the recording mode may be set to Never, or the motion detection engine may be frozen.
Why This Happens in Real Homes
UniFi Protect motion detection not triggering is usually a configuration issue — detection zones not covering where movement happens, sensitivity set too low, or the recording mode not set to capture motion. If the camera is only set to record on smart detections (people/vehicles), ordinary motion won't create events.
In the camera's Protect settings, set or expand the motion detection zones to cover the area you care about, raise the sensitivity, and confirm the recording mode records motion events (not smart-detections only or "never"). Make sure the camera is actually recording and storage is healthy. Update firmware. Zones and sensitivity are the two things that most often need adjusting for reliable motion capture.
Symptoms
- No motion detection
- Motion not triggering
- No motion events
- Doesn't detect movement
- Motion recording not starting
- Missed motion
- Detection dead
- No motion in the timeline
Recognize these? Here's what usually causes it.
Common Causes
- Detection zones not set / too small
- Sensitivity too low
- Recording mode not set to detect motion
- Camera not in a recording mode
- Smart-detect-only filtering out motion
- Firmware issue
- Zone excludes the area of movement
- Controller/storage issue
Most fixes happen in the first 3 steps.
Do not over-tighten zones so much that real events are excluded.
Tools & Requirements
Step-by-Step Solution
Verify motion detection is enabled
In Protect: Devices > select camera > Settings > Motion Detection. The toggle must be on. If disabled: the camera records continuously (if continuous recording is on) but does not generate motion events. After enabling: walk in front of the camera and check the Events page for a new motion event within 5-10 seconds. If no event appears: adjust sensitivity (next step).
Increase motion sensitivity
In camera settings: Motion Detection > Sensitivity. The slider ranges from low (detects only large, fast movements) to high (detects subtle, slow movements). Default is usually medium. If set too low: a person walking at normal speed may not trigger detection. Increase to 70-80% and test. If you get too many false triggers at high sensitivity (trees, shadows, rain): add motion zones to restrict detection to specific areas instead of lowering sensitivity globally.
Configure motion zones correctly
Motion zones restrict detection to specific areas of the camera's field of view. If a zone is defined but does not cover the area where motion occurs: no event triggers. In Protect: Devices > camera > Motion Zones. Check that zones cover doorways, walkways, driveways — wherever you expect people. If no zones are defined: the entire frame is the detection area (default). If zones are defined but miss key areas: expand them. You can have multiple zones per camera.
Check the recording mode
If the recording mode is set to 'Never': the camera does not record and motion events may not be generated (depending on Protect version). In Protect: Devices > camera > Settings > Recording > Recording Mode. Set to 'Always' for continuous recording with motion events, or 'Detections Only' to record only when motion triggers. 'Detections Only' still generates motion events and notifications but uses less storage. Verify recording mode is not 'Never' or 'Disabled.'
Restart the camera to reset the motion engine
If settings are correct but motion still does not trigger: the camera's motion detection engine may be frozen. In Protect: Devices > camera > Restart. After reboot: walk in front of the camera and check the Events page. If motion events now appear: the engine was stuck. If still not triggering: update the camera firmware. If the firmware is current and detection still fails: the camera's image sensor may have a hardware issue preventing the motion algorithm from detecting frame changes.
Quick Solutions
Still having issues? This is usually the deeper cause below.
If the sensor still misses events after repositioning, check whether a scheduled 'home' or 'away' mode is overriding the sensitivity setting silently.
Maintain separate zone profiles for day/night lighting conditions.
This issue almost always looks more complex than it is — the majority of cases trace back to a single setting, a stale credential, or a default that shipped wrong.
- Detection zones not set / too small
- Sensitivity too low
- Recording mode not set to detect motion
- Camera not in a recording mode
- Smart-detect-only filtering out motion
Before you go — try one of these (they fix most cases).
Official Manufacturer Manual
UniFi Protect provides official product documentation through their online manual rather than downloadable PDF. Access setup guides, troubleshooting steps, and product specifications for your UniFi Detection Rules.
Source: help.ui.com
Need More Help? UniFi Protect Support
Note: The contact information below connects you directly to UniFi Protect's official customer support team, not Trunetto. They can help with warranty claims, device replacements, and advanced technical issues.