Ubiquiti USW Access Point Firmware 3.9.21.8191 Download

Posted at December 22, 2024 by PCI-DB Team

Ubiquiti USW Access Point Firmware 3.9.21.8191 Description

Firmware changes since 3.9.19:

- [UAPG2/G3] Track TX airtime latency.
- [UAPG1] Fix device firmware upgrade.
- [HD/SHD/XG] Fix the speed regression introduced in 3.9.18.
- [HD/SHD/XG] Stability improvement.
- [XG] 10Gbps Ethernet performance improvements.
- [nanoHD] Merge 3rd release firmware.
- [nanoHD] Add RADIUS VLAN support. support
- [nanoHD] Add fast-apply support.
- [nanoHD] Add 802.11w support (PMF).
- [nanoHD] Add 802.1X identity support.
- [nanoHD] Disable country code IE.
- [nanoHD] Stability improvements.
- [UAP] Fix a memory leak related to the redirector.
- [UAP] Various bugfixes and improvements.
- [USW] Enhance DHCP snooping trace log for LAGs.
- [HW] Enable TCP Packetization-Layer Path MTU Discovery when an ICMP black hole detected.
- [HW] Improve CPU utlization of SNMP.

About Access Point Firmware:

If you update the Access Point (AP) firmware, your device can benefit from changes that fix multiple issues encountered by wireless clients, correct different user interface problems, add various functionalities, and include support for newly developed protocols.

Before performing this task, we recommend that you read and understand all the installation steps, because there are many AP models and manufacturers available. Each producer strives to make the procedure as simple as possible, but there are cases when it's anything but that.

It is also advisable that you apply a new access point firmware in a steady power environment (UPS unit will satisfy this need), using an Ethernet cable rather than a wireless connection. The latter can be easily interrupted.

With this in mind, if you wish to apply this version, click the download button and install the package on your access point. Remember to check back with our website as often as possible so that you don't miss a single new release.

  It is highly recommended to always use the most recent driver version available.

Try to set a system restore point before installing a device driver. This will help if you installed an incorrect or mismatched driver. Problems can arise when your hardware device is too old or not supported any longer.

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