UniFi 5.5.11 Stable Candidate has been released

by Ubiquiti Employee ‎04-21-2017 01:44 PM - edited ‎04-22-2017 06:36 AM (45,607 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). Please note that DPI will not work when using Smart Queue QoS, as traffic will not be offloaded. It's also worth noting that maximum throughput will be affected when using Smart Queue 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 as of this release. 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).
  • We no longer support Java version 6, it needs to be 7 or later. We recommend Java version 8.
  • 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.


Controller bugfixes/changes from 5.5.9:

  • Move the AP channel utilization graph into the header.
  • Add memory and load avg. to device list columns.
  • Show only adopted APs in Recent Activities in Statistics.
  • Rename all-time top client.
  • Update validation hint for maximum number of stations in wireless network group.
  • Show DB migration progress.
  • Grey out disabled WLAN rows in Property Panel.
  • Improve chart animations.
  • Add autofocus on 2FA token field.
  • Allow cancel migration of device.
  • Fix Not Authorized/Bad Request on first launch after accepting SDN Invitation.
  • Fix WAN load balance config, so that it actually provisions to the USG.
  • DB migration improvements.
  • Fix firewall rule validation.
  • Improve LAN address identification on USG.
  • Fixed map list unplaced device sorting.
  • Add UniFi AP AC In Wall hybrid capability.
  • Allow switch downlinks table to scroll.
  • Updated WLAN group load balancing limit.
  • Fix memory leak in WebRTC.
  • Improve WebRTC performance.
  • Improve WebSocket performance.
  • Improve FQDN regex.
  • Fix VLAN validation.
  • Improve performance on Statistics/Overview page.
  • Allow migrate only adopted and connected devices.
  • Enhance PayPal labels and password field.
  • Do not display FB and Google section if FB or Google was enabled for AngularJS and then switched to Legacy JSP.
  • Update WebRTC JNI.
  • Update bundled Tomcat.
  • Pull config version on device refresh. 
  • Error log when attempting to update a config of an unadopted devices.
  • Support SSO Cloud Access with 2FA.
  • Time series improvement and bugfix.
  • Various backend improvements.


Firmware changes from 3.7.50/4.3.37:

  • [UAP] Wireless uplink improvements.
  • [UAP] Guest mode broadcast filter improvements.
  • [UAP] Fix a memory leak.
  • [SEC] Another security improvement.
  • [USG] DHCP client hostname DNS registration improvements - strip invalid characters and register the remaining, and allow periods. Removed 'host-decl-name' from registration consideration, so hosts with DHCP reservations defined in the controller will have the client-provided client hostname registered.
  • [USG] Back end fix for DPI statistics retention coming in 5.6.3 controller
  • [USG] Several Debian package dependencies updated to match latest EdgeRouter stable release.
  • [USG] dnsmasq upgraded to same as latest EdgeRouter stable release.  
  • [USG] Adds back end allowing disabling SSH, for coming controller-side feature.
  • [USG] Fixed RADIUS server service not being restarted in some cases where required, cause of RADIUS not working post-upgrade with previous upgrades.
  • [USG] Fix for IPsec reloading problem after bootup and IP changes with DHCP WANs
  • [USG] Added back end for site to site IPsec VPN status and statistics in the controller.


Bundled Firmware: