UniFi Video 3.9.9 Release

by Ubiquiti Employee on ‎09-25-2018 11:13 AM

System Requirements

  • NVR appliance or a 64-bit OS from the Files section below
  • Intel Atom D2500 CPU
  • 100GB HDD
  • 4GB RAM
  • Google Chrome
  • 500GB HDD or larger
  • RAM Disk for Windows installations - How-To


Important Notes

  • This will be the last version of UniFi Video to support Java 7 and Ubuntu 14.04, please see this post for further details
  • There is a new experimental motion detection algorithm that has very positive feedback from the beta run.  We're going to leave it as experimental and opt-in for now and you can test to see if it suits your environment better.  To enable it:
    • SSH into the camera and execute: 
      ubnt_system_cfg write test.analytics.bgmodel ubnt4; cfgmtd -w -p /etc; reboot
    • If you would like to revert back to the original algorithm, execute:
      ubnt_system_cfg write test.analytics.bgmodel ""; cfgmtd -w -p /etc; reboot
    • A couple things to know when enabling this algorithm:
      • Many users reported needing to make their motion zone more sensitive compared to the previous algorithm
      • This change will not persist through firmware upgrades, we will be looking at incorporating it into the UI after pending feedback here.
  • All Linux commands below are for the NVR appliance and Debian 7. Different Linux distributions will have slightly different commands
  • Your Ubiquiti Account (SSO) is the same account you use to login to the community forum. If you want to use a different account for UniFi Video, first log out of the community before setting up UniFi Video for cloud access
  • Systems that are not the hardware NVR (airVision-C or UVC-NVR) or UAS must have some form of an NTP daemon installed to prevent timestamp and time synchronization errors



  • Windows: Run Installer as Administrator
  • Hardware NVR/Debian Install manual installation (other Linux files are linked at the bottom of this post, simply change the URL and filename to the appropriate operating system):
    wget https://dl.ubnt.com/firmwares/ufv/v3.9.9/unifi-video.Debian7_amd64.v3.9.9.deb
    sudo dpkg -i unifi-video.Debian7_amd64.v3.9.9.deb
  • UniFi Video controller is now using Java8 at runtime. NVR appliances are upgraded automatically to Java Runtime 8 when this version is installed.
  • Fixed unifi-video startup script, so it waits for /srv mount point to be available before starting the controller.


Cloud Setup

New Installations

  • Visit https://video.ubnt.com using Chrome from a computer on the same network as your UniFi Video installation.


  • Connect to your NVR locally (over HTTPS using the server's IP address on port 7443), then click 'Connect To My Ubiquiti Account' under NVR Settings.



Change Log 

Camera Firmware

  • New release: bundled version: 4.4.8:

    • UVC-G3-AF: Improved image quality with IR extender accessory



  • No change: bundled version 1.0.31





  • N/A

Security improvements:

  • N/A

Bug Fixes:

  • Optimized the recording chunk processing task, so it doesn't cause the chunks to linger in the cache. Improved the processing time for each chunk by around 50%
  • Added the system info file back in the downloaded support package (without camera password)
  • On NVR and UAS appliances, check and wait (if needed) for the /srv partition to be ready, before starting the unifi-video service


Web Interface


  • N/A

Bug Fixes:

  • N/A



  • In Live View, when switching between Live and Recording channels, the video temporarily freezes. This is also causing recording at that moment to freeze when played back.  We have identified the root cause and it is not a trivial fix.  Stay tuned for a future release that resolves this bug.
  • We are aware of some issues with the iOS app and have addressed it by rolling back to a known working version on as many models as possible.
    • iPhone X users will continue to experience audio issues for the time being, we will be working as quickly as possible to resolve this as well as incorporate the full support for new camera models in the form of iOS App updates.

Port Forwarding/Custom Ports

If not using Cloud login, please check this article for required open ports and customizing ports





*Cloud functionality is peer-to-peer. All video is encrypted and not stored on our servers.

**These are the only officially supported Windows operating systems

***This will be the last version to support Ubuntu 14.04, please see this post for further details