Why Won't My Arlo Motion Zones Work Correctly?
- No active Arlo Secure subscription
- Activity zones not enabled or drawn correctly
- Camera moved so the field of view shifted
Problem Description
Your Arlo camera triggers on motion outside your defined activity zones or misses motion inside them, so zones are not filtering alerts the way you set them. Arlo Activity Zones require an Arlo Secure subscription on most models, are processed in the cloud for battery cameras, and only work within the camera's field of view, so most issues are subscription, zone placement, or detection-range problems rather than a faulty camera.
Why This Happens in Real Homes
Arlo Activity Zones need an Arlo Secure subscription and are only as good as the zone drawing and the camera's aim, so most zone failures are subscription, placement, or sensitivity, not a broken camera. In real homes a camera nudged out of position, or a zone drawn on an old snapshot, stops matching reality.
Confirm the subscription, redraw the zones on a current snapshot, and lower sensitivity to cut edge triggers.
Symptoms
- Alerts trigger outside the drawn zones
- Motion inside a zone is missed
- Zones seem ignored entirely
- Too many alerts despite zones
- Zones reset after an app update
- Zones work on one camera but not another
- Person/package detection not respecting zones
- Night motion not matching zones
Recognize these? Here's what usually causes it.
Common Causes
- No active Arlo Secure subscription
- Activity zones not enabled or drawn correctly
- Camera moved so the field of view shifted
- Motion beyond the zone still within PIR range
- Cloud zone processing lag on battery cameras
- Motion sensitivity set too high
- Firmware or app out of date
- Zone drawn on a stale snapshot
Most fixes happen in the first 3 steps.
Arlo Pro 3+ supports up to 3 activity zones per camera.
Tools & Requirements
These tools will help you complete this fix.
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Step-by-Step Solution
Check your Arlo subscription tier
Motion zones (also called activity zones) require an Arlo Secure subscription. Without a subscription, Arlo cameras use the full frame for motion detection with no zone customization. In the Arlo app, go to Subscription and check your plan. If you have Arlo Secure ($7.99/month per camera or $12.99/month for unlimited cameras), motion zones should be available under the camera motion settings.
Edit or redraw motion zones
In the Arlo app, tap your camera, go to Settings > Motion Detection > Activity Zones. Tap Add Zone or Edit an existing zone. Draw a rectangle or polygon around the area you want to monitor. Name the zone (Driveway, Front Porch, Sidewalk). You can create multiple zones, each with different sensitivity settings. If zones were previously set but stopped working, delete all zones and recreate them — zone data can become corrupted after firmware updates.
Adjust sensitivity per zone
Each activity zone can have its own sensitivity level. In the Arlo app, tap the zone and adjust the sensitivity slider. Higher sensitivity catches smaller motion (a cat walking) but generates more false alerts. Lower sensitivity catches only large motion (a person walking) and reduces false triggers. For outdoor cameras, set the Driveway zone to medium-high and the Street zone to low or exclude it entirely. Test by walking through each zone and checking if events trigger.
Fix zones that detect motion outside the drawn area
Arlo activity zones are processed in the cloud, not on the camera. The camera still records the full frame — the cloud determines whether the detected motion falls inside a zone. If motion near the edge of a zone triggers alerts, the detection algorithm has some tolerance for motion that starts outside and moves into the zone. Make zones slightly smaller than the actual area you want to cover to reduce edge triggers. Also check that zones do not overlap — overlapping zones can trigger multiple alerts for the same event.
Check firmware and app version
Outdated camera firmware or Arlo app versions can cause zone settings to not apply correctly. In the Arlo app, go to Settings > My Devices and check for firmware updates. Also update the Arlo app from the App Store or Play Store. After updating, go back to Activity Zones and verify your zones are still configured — some firmware updates reset zone settings.
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.
Motion zones work best when zones have clear boundaries like walkways or driveways.
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.
- No active Arlo Secure subscription
- Activity zones not enabled or drawn correctly
- Camera moved so the field of view shifted
- Motion beyond the zone still within PIR range
- Cloud zone processing lag on battery cameras
Before you go — try one of these (they fix most cases).
Official Manufacturer Manual
Hubitat provides official product documentation through their online manual rather than downloadable PDF. Access setup guides, troubleshooting steps, and product specifications for your Arlo Pro Camera.
Source: docs.hubitat.com
Need More Help? Hubitat Support
Note: The contact information below connects you directly to Hubitat's official customer support team, not Trunetto. They can help with warranty claims, device replacements, and advanced technical issues.
