Firmware Update: Ubiquiti UniFi UAP/USW 5.43.19.12493 / 5.43.18.12487 / 4.3.24.11355

Ubiquiti has released new firmware for its wireless products that fall in the UAP and USW series. This again addresses several points. The version number is fixed at 5.43.19.12493 for the nanoHD/IW-HD/FlexHD/BeaconHD, U6-Lite and U6-LR access points, at 4.3.24.11355 for the AC-Lite/LR/Pro/EDU/M/M- PRO/IW/IW-Pro, HD/SHD/XG/BaseStationXG and OD/OD5/OD+ access points, and at 5.43.18.12487 for the switches in the UniFi series. The changes of these releases are as follows:

UAP Firmware 5.43.19.12493

This release is only for the following UniFi Access Points:

• UAP-nanoHD/IW-HD/FlexHD/BeaconHD
• U6-Lite
• U6-LR

Improvements

• [UAP-MTK] Redesign VLAN support.
• [UAP-MTK] Improve 2.4GHz channel utilization detection.
• [UAP-MTK] Improve WiFi compatibility with IoT devices.
• [UAP-MTK] Improve 2.4GHz WiFi driver stability.
• [UAP-MTK] Improve system memory management.
• [UAP-MTK] Improve stability when netconsole is enabled.
• [UAP-MTK/U6] Enable UNII-3 (with DFS) for UK.
• [U6] Enable DFS Channels.
• [UAP] Increase wpa_supplicant log verbosity.
• [UAP] Improve wireless uplink stability when manual uplink priorities are set.
• [UAP] Improve wireless uplink stability.
• [UAP] LLDP: Report correct power consumption for all models.
• [UAP] Advertise correctly POE power consumption.
• [UAP] Improve guest portal support.
• [UAP] Log system process output at ‘notice’ log level instead of ‘error’.
• [HW] Align remote syslog format with UDM.
• [HW] (Re-)enable several toolchain security features.
• [HW] Use product SKU as default LLDP system name value.
• [HW] Improve SSH server stability.
• [HW] Use product name as default hostname.

Bug fixes

• [UAP-MTK] Fix channel switching failure from Auto to a DFS channel.
• [UAP-MTK] Fix issue with RF Scan result being red for the last channel scanned.
• [UAP-MTK] Fix channel 165 RF Scan results being empty.
• [UAP-MTK] Fix RF Scan not working when using a management VLAN.
• [UAP-MTK] Fix intermittent instability during provision.
• [U6] Fix automatic channel selection intermittently not working.
• [UAP] Fix potential crash in WPA authenticator.
• [UAP] Fix Apple Watch Series 5 connection issues when High Performance Devices is enabled.
• [UAP] Fix intermittent WiFi connectivity with clients that use incorrect MAC address for DHCP request.
• [UAP] Fix intermittent VLAN configuration failure during provision.
• [UAP] Fix hostapd restart error during RF environment scan.
• [UAP] Fix intermittent guest portal DNS configuration failure.
• [HW] Fix potential lockup when netconsole is enabled.
• [HW] Fix version and hostname order in syslog.

Known issues

• 5 GHz WLANs with WPA Mode set to ‘Both’ have intermittent connectivity issues on this release. If you are facing this issue, please try to set the WPA Mode to ‘WPA2 Only’. We are working on fixing this as soon as possible.

UAP Firmware 4.3.24.11355

This release is only for the following UniFi Access Points:

• UAP-AC-Lite/LR/Pro/EDU/M/M-PRO/IW/IW-Pro
• UAP-HD/SHD/XG/BaseStationXG
• UAP, UAP-LR, UAP-OD, UAP-OD5
• UAP-v2, UAP-LR-v2
• UAP-IW
• UAP-Pro
• UAP-OD+

Improvements

• [UAP] Improve wireless uplink stability.
• [UAP] Revamp Wireless Experience Score (WES).

USW Firmware 5.43.18.12487

This release is only for all UniFi Switches.

Improvements

• [USW] Log system process output at ‘notice’ log level instead of ‘error’.
• [USW-PoE] Improve boot time when syslog encryption is enabled.
• [USW-G2/Lite/8] Various SNMP improvements.
• [USW] Add screensaver functionality to touchscreen.
• [USW] Disable IGMP header validation to fix IPTV issues.
• [USW] Support Guest Network on L3 Switch, this requires Network Controller changes.
• [USW] Decrease downtime when DNS Server is changed.
• [USW] Enable sending of LLDP-MED power supply bits.
• [USW] Improve CPU usage when IGMP Snooping is enabled.
• [HW] Align remote syslog format with UDM.
• [HW] (Re-)enable several toolchain security features.
• [HW] Use product SKU as default LLDP system name value.
• [HW] Improve SSH server stability.
• [HW] Use product name as default hostname.

Bug fixes

• [USW-PoE] Fix remote syslog memory leak.
• [USW-PoE] Fix the LCM reboot screen.
• [USW-PoE] Fix port name update not being reflected over SNMP.
• [USW-PoE] Fix remote syslog timezone issue.
• [USW-G2] Fix incorrect throughput values ​​on LCM.
• [USW-G2/Lite/8] Fix memory leak in SNMP agent.
• [USW-G2/Lite] Fix SNMP agent not listening to IPv6.
• [USW] Fix DHCP Snooping rate limiting issue.
• [HW] Fix potential lockup when netconsole is enabled.
• [HW] Fix version and hostname order in syslog.

Known issues

• Clients network access fails when port is operating MAC-based mode.
• The LCM Screensaver feature is currently not supported for USP-RPS.