[FIRMWARE] 4.0.15.9872 for UAP/USW has been released | Stable

by Ubiquiti Employee 3 weeks ago - last edited 2 weeks ago (59,839 Views)

We've prepared firmware 4.0.15.9872. Please see below for the changelog and links to the firmware binaries.
 

Firmware changes since 4.0.14

  • [HD/SHD/XG/BaseStationXG] Fix some IE corruption (related to wildcard and uplink SSIDs). 
  • [nanoHD/IW-HD] Tweak performance.
  • [HW] Miscellaneous bug fixes and improvements.

 

NOTE: You may start to see EVT_AP_RestartProc events in the controller log. If you see these, please report if there is anything specifically in your setup that triggers the events. The processes restarting is not new, but the reporting of the restarting is, and we are using these reports to clean up these issues.

 

SPECIAL NOTES:

  • Any US-XG-6POE upgrading from 4.0.2 or earlier will take a long time to upgrade. Don't be surprised if your switch is unavailable for 5-10+ minutes as 4.0.3+ also updates the PoE firmware to improve PD compatibility.
  • 1st gen UAPs may require extra steps when upgrading from firmware 4.0.3. You can try disabling all WLAN groups, and then running the upgrade. Devices that are seemingly "stuck" on 4.0.3 may require TFTP recovery to upgrade from that firmware.

  • Running controller 5.9.20 (or later) and not seeing the in controller upgrade? Or did you upgrade and the controller is now offering a downgrade? If so, please see my post HERE

 

Download:

*This firmware is meant to be a one file solution that works with all models of UniFi switch. You can use it when upgrading from 3.9.40+ only. It will not work when upgrading from earlier releases.

 

Any and all feedback is welcome, including lettings us know about successful device upgrades. When reporting an issue, please ensure that you include the following information:

  1. Controller version.
  2. Firmware version (previous and current). 
  3. Device model(s). 

Links are all HTTPS. This assumes your device(s) are currently running at least 3.7.51, and that the device's date is properly set (i.e. it can reach a NTP server). If you encounter issues with the upgrade, or your device isn't on a minimum supported firmware, then you can change the link to HTTP before performing the upgrade.