Ubiquiti Firmware

Ubiquiti firmware has some buggy versions that need to be avoided. In general never use a ".0" release. It is beta quality and will probably have serious bugs that may be fixed by .1 or .2 version.

Ubiquiti have two very separate product lines with different firmware, AirMAX and UniFi

Don't use the latest firmware from Ubiquiti! Use the stable versions below

AirMAX

We are currently updating to 8.7.15 on most CPE (like the LiteBeams)

Version notes:
8.7.15 (the latest) seems to be working and stable (release note)
8.7.7, 8.7.9 and 8.7.11 are good
8.7.4 and 8.7.5 tend to crash
8.7.5 has a TDMA bug which causes performance to fail after a few days.
8.7.1 the management radio disconnects constantly

Ubiquiti changed the signal to read 5db hotter in versions from 8.7.4, so a -50
So a -55dB in the newer versions would be -60dB in 8.7.1 or earlier
see release note

## Notes:
RE: "Wireless: Corrected RX signal calculation and reporting." a +/- difference in reported signal level may result following upgrade, which does not affect radio performance in any way.
- Decrease in signal level may appear due to automatic gain control (AGC) compensation 

Download 8.7.15 here.  (airMAX download page) 

For sector AP's we use 8.5.12 for DFS stability

Download 8.5.12 here

NEVER UPGRADE A SECTOR WITHOUT ASKING EVERYONE FIRST!

We disable AirView on some sectors to improve CPU performance, and avoid crash that sometime occurs.

UniFi

We've found all versions after 4.3.20 to be buggy. Basically meshing broke in the later versions so your network will go down after a day or so, unless all of your AP's are wired. Not only will a meshed AP crash, it will take down the rest of the local network!

Download 4.3.20 here

As of now (June 2025) Unifi APs are running fw 6.6.77 and switches   7.1.26 and they all seem to be working fine.