UniFi SDN Controller 5.7.19 Stable Candidate has been released

by Ubiquiti Employee ‎02-16-2018 08:18 AM - edited ‎07-04-2018 05:25 AM (64,186 Views)


  • As always, make a backup prior to upgrading.
  • Windows users must have x64 Java installed as we only support 64-bit WebRTC library. Please see HERE and download the missing version (64bit offline Windows install package).
  • You cannot re-use a VLAN ID for dynamic VLAN if it is set as a static value for another SSID on the same AP. So, if I have a SSID set to use VLAN 10, I cannot use VLAN ID 10 for RADIUS controlled VLAN users as those users will not get an IP.
  • Smart Queue QoS is similar to the implementation as in EdgeOS (see HERE). It's worth noting that maximum throughput will be affected when using QoS, as traffic is not offloaded. There are some rough guidelines in the article linked above.
  • DFS channels can not be used for wireless uplink in the US. Please use non-DFS channels if you need to use wireless uplink on dual band UAPs. 
  • Official UniFi MIBs can be downloaded from HERE and HERE (those are 2 different files).
  • As of 5.7.x we only support Java 8. At this time Java 9 is not supported.
  • Features like airtime fairness, bandsteering, load balancing and minimum RSSI are default disabled. If you need them you need to go to Settings>Site and check Enable advanced features.
  • If you previously used Google Maps for a site map, then you have to enable this feature again by adding an API key. This is done under Settings>Controller. There is a linked guide with instructions.


Important Notes:

  • The initial database migration will take longer than normal. It is expected to see mongo using most, if not all, of the available CPU cycles during this process. Please be patient, this process could easily take 15+ minutes, depending on the amount of historical stats, as well as the system specs. As always, err on the side of caution, and make a backup before upgrading.
  • The controller will not start if it is set to bind to a privileged port (<1024), as it now runs as a non-root user. There are various ways you can fix this immediately, like authbind, although there may be better ways. We're considering options here.
  • If your controller is running on a UniFi Cloud Key (UCK), make sure it is on firmware 0.6.4 or later, otherwise the controller will not start. This firmware is available via the normal upgrade mechanism found in the controller or it's local management page. Make sure to make a backup before upgrading the UCK firmware, as you'll need it to restore after, and it's good to have a backup on hand before any controller upgrade.
  • Support for PicoM2 and 1st gen AC models was dropped in 5.7.x. Please see our announcement HERE.


Known Issues:

  • airTime will not work if a radio is disabled and/or there isn't any SSID present. This will be fixed in a future release. If you enable it, and it still isn't working, then you may need to force a refresh without cache. 
  • If you start both a 2.4GHz and 5GHz scan in quick succession, then it will fail.
  • It is expected that airView will stop occasionally. A stop/start sequence should restore functionality.
  • If you start an airTime scan while airView is running, then airView will stop and you'll need to perform a stop/start sequence to get it working again. This will be fixed in the future.
  • You can't save a port profile when setting the native network to none. This will be fixed in 5.7.20. 


New Features:

  • Add GeoIP Filtering options to settings [Beta].
  • Add Virtual devices on Maps to plan coverage.
  • Add SSH keys to authenticate to device.
  • Add Auto Channel feature on Maps.
  • Add Release Notes to controller UI.
  • Add ability to create and set user defined DHCP options.
  • Add Wireless Uplink priority.
  • Batch remove vouchers.
  • Customize voucher columns.
  • Ability to display historical statistics per Client (traffic, packets, signal power etc.).
  • Add support for SNMPv3.
  • Add IPv6 support (Beta).
  • Add restart devices permission.
  • Add support for new Elite Device service.
  • Add Bulgarian translations to the Hotspot Portal.
  • Link to property panel from Location on Neighboring Access Points page.
  • Add Intrusion Prevention System (IPS) [beta].
  • Support Antenna selection for internal antenna.


Controller bugfixes/changes since 5.7.18:

  • Fix downgrade button title.
  • Fix password field validation in edit account form.
  • Find the correct uplink on devices with native bonding.
  • Various backend bugfixes and improvements.

Please review the attached changelog text file for a full list of changes from 5.7.0-5.7.19. A proper list will be prepared for the initial stable 5.7.x release. Thanks!


Recommended Firmware: