airOS v5.6.1 正式版本发行及变更记录


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AirOS V Firmware Revision History

Supported products

  • Bullet M2/M5/Titanium
  • Rocket M2/M2 Titanium/M3/M365/M900/M5/M5 GPS/M5 Titanium/M6
  • NanoStation M2/M3/M365/M5/M6
  • NanoStation Loco M2/M900/M5
  • NanoBridge M2/M3/M365/M900/M5
  • NanoBeam M5
  • PowerBeam M2/M5
  • AirGrid M2/M5/HP/HP New
  • PowerBridge M3/M365/M5/M10
  • PicoStation M2
  • AirRouter/HP
  • PowerAP N

Version 5.6.1-Service release (July 3, 2015)


  • New: Private SNMP MIB
  • New: IPv6 support
  • New: Manage custom scripts- New: Extend Statistics reporting - TX/RX reporting improvement- New: Extend Statistics reporting - Latency for each Station
  • New: Statistics - ACK/Distance display
  • New: Report remote TX power in AP/STA info
  • New: Show RX Signal per Chain
  • New: Add firmware prefix reporting for any model (TI/XM/XW)
  • New: Display actual operating frequency range in MAIN page
  • New: Show radio mode in Site Survey scan results
  • New: DHCP address reservation
  • New: Implement QOS for VLANS
  • New: Increase password length to more than 8 symbols
  • New: Increase MTU/MRU to 1500 bytes for PPPoE (server must support max-payload tag)
  • New: airMAX devices will support only WPA-AES/WPA2-AES security (WEP optional for AP-Repeater mode)
  • New: Channel shifting is removed. Frequency selection in 2MHz/5MHz steps available when in airMAX mode
  • New: TCP support for remote system logging
  • New: DynDNS More providers support
  • New: Linux kernel update to
  • New: Upgrade lighttp 1.4.35
  • New: Update hostapd/wpa_supplicant to the latest available stable version (v2.1 final)
  • New: Upgrade libevent to 2.0.22
  • New: Upgrade dropbear to v2014.63
  • New: Upgrade OpenSSL to 1.0.2a


  • Fix: Device hangs on startup when DHCP relay is enabled on two LAN interfaces
  • Fix: Long Range PTP mode stops passing traffic on high load (XW)
  • Fix: Sometimes AP can’t change channel after RADAR detection
  • Fix: airGW provisioning creates wrong forward rules in case of PPPoE client configuration on WAN interface
  • Fix: Broadcast goes from one STA to another STA even if Client Isolation function is enabled on AP
  • Fix: Report DFS Wait or DFS Radar in MAIN page
  • Fix: AP drops all stations. Recovers after reboot. (XW)
  • Fix: Crash during upgrade from v5.5.x when parsing incorrect IPTABLES rules
  • Fix: Update EIRP limits for Australia according channel bandwidth
  • Fix: Allow Fallback IP for PPPoE client configuration
  • Fix: Various DFS and Frequency List usage improvements
  • Fix: Speed test low values when using Management VLAN
  • Fix: DFS improvements for Czech Republic
  • Fix: airSelect can use only non-DFS frequencies
  • Fix: No full-restart when changing ACL list first time after upgrade to v5.6.x
  • Fix: Wrong 32 symbols SSID reporting to airControl
  • Fix: Remote statistics reporting to client keeps Android phone wake up all the time
  • Fix: Update EIRP limits for Brazil
  • Fix: PPPoE MTU/MRU limited according to parent interface settings
  • Fix: Traffic stops after Site Survey execution on remote Station when hidden SSID is set on AP
  • Fix: M900 radio fails initialisation in heavy noise environment
  • Fix: STA Device Name is truncated in SNMP reporting
  • Fix: SNMP string sizes
  • Fix: Station can’t connect to AP with Hidden SSID (XW)
  • Fix: Discovery response leak across VLANs
  • Fix: Station shows wrong “TX Signal” in AP details window
  • Fix: The same channel numbering for 4920-5000MHz and 5920-6000MHz (Compliance Test).
  • Fix: Disable UPnP SSDP messages in Syslog
  • Fix: Main tab is empty if device name contains symbol
  • Fix: Scan results buffer size limit issue (at ~200 APs found)
  • Fix: Reduce TX power to the EIRP Limit when radio is operating in Station mode or Auto frequency selection is chosen for AP
  • Fix: Speedup DHCP and PPPoE clients to update IP settings after successful WPA authentication
  • Fix: SSL v3 POODLE vulnerability
  • Fix: Add 5GHz frequencies for Kazakhstan
  • Fix: Validate ping interval for Ping Watchdog. It can‘t be set to 0 sec.
  • Fix: Improved Wireless page loading routine
  • Fix: AirMax Capacity/Quality calculation/reporting with Fixed Ratest
  • Fix: TX flow control and multi queue support. (XW)
  • Fix: Error after run Speed Test (XW)
  • Fix: ACK/Distance miscalculation when connecting to XM AP. (HT8, HT30, XW)
  • Fix: AP/STA performance issues (XW, airMax)
  • Fix: HT20 Rates are reported/used when device is configured to operate in HT40 and fixed rate is selected. Alternative rate module selected
  • Fix: Site Survey does report the same NF value for each channel (XW)
  • Fix: Strange AirView view on Rocket M5 Titanium (XW)
  • Fix: airSync does not work with fixed rates (XW)
  • Fix: Radio has to fallback to full channel list if configured Frequency List is enabled but doesn’t contain valid frequencies (XW)
  • Fix: Remote Syslog message type is “unknown”
  • Fix: Last IP isn’t taken from VLAN tagged packets (XW)
  • Fix: RADIUS accounting issue (XW)
  • Fix: Selecting SSID on HT40 may change Channel width from ‘Auto HT20/40’ to ‘HT20’
  • Fix: Disable ACK slider if AirSync/Long range PtP selected
  • Fix: Antenna alignment tool (beeper) crashes on iPhone, iMac, etc.
  • Fix: Don’t suggest WPA key as Username for login save (Firefox)
  • Fix: Wireless page is broken (IE8/9)
  • Fix: XW: Improved Data Rate selection for Default rate algorithm when operating in noisy environment
  • Fix: Remove 924MHz (shifted frequency) as it’s out of allowed band range (10MHz channel width)
  • Fix: Add full product name in discovery reporting
  • Fix: AP crash with Multicast Enhancement enabled and specific multicast traffic on STA association
  • Fix: Scan results ageing issue
  • Fix: Ping tool doesn’t execute ping in 1sec interval
  • Fix: Ping tool ping count is sometimes higher than defined
  • Fix: Unable to set empty PPPoE password (Chrome specific)
  • Fix: Proper antenna polarisation selection for 802.11abg support
  • Fix: Some frequencies were missing for India when 30MHz channel width is selected
  • Fix: Improved association with older devices
  • Fix: Escape quotes for Device Name and SSID in Station List
  • Fix: Make Feed only -3dBi as default antenna selection for appropriate models
  • Fix: XW: WPA2-PSK Association time out in case of long channel list
  • Fix: Min TX Power for NanoBridgeM5 should be -8dBm
  • Fix: Discovery returns wrong product name
  • Fix: Speedtest duration validation in range [1-99]
  • Fix: Reload newly uploaded configuration file
  • Fix: ac-agent doesn’t send GPS coordinates read from GPS module
  • Fix: STA continuous crash when connecting to Apple AirPort AP
  • Fix: AP doesn’t initiate re-authentication to RADIUS server when Station re-associates
  • Fix: EAP TTLS/PEAP do not check time in TLS session
  • Fix: WEB UI: Can’t logout on high CPU load
  • Fix: Discovery shows empty Device Name if length is 64 symbols
  • Fix: Italian translation updates
  • Fix: Spanish translation updates
  • Fix: Simplified Chinese translation updates


  • WEB UI: Disable controls while Speed Test is in progress
  • WEB UI: Show explanation after move mouse on RX/TX Signal labels
  • WEB UI: Ordering by frequency improvement
  • WEB UI: Site Survey results sorting improvements
  • WEB UI: Update Long Range PtP Mode help message
  • WEB UI: Change EIRP Limit warning message and Auto Adjust to EIRP Limit label
  • WEB UI: Increase TEST mode timeout for DFS frequencies
  • WEB UI: Don’t allow to select AP with unsupported security mode in Site Survey
  • WEB UI: Port forwarding from LAN side when accessing WAN IP (NAT loopback)

Version 5.5.10-Service release (October 01, 2014)

Regulatory updates:

  • New: Open 5150-5250MHz frequency range for United States and Puerto Rico (U.S. territory) countries. This change applies for product models listed bellow:

    • Rocket M5/Rocket M5 Titanium
    • NanoStation M5
    • NanoStation M5 Loco
    • NanoBridge M5
  • New: Add 40MHz channel bandwidth for New Zealand

Version 5.5.8-Service Release (January 23, 2014)

Regulatory updates:

  • New: Regulatory changes for Greece
  • New: Regulatory changes for Thailand
  • New: Add Croatia under EU regulatory rules
  • New: Split Serbia and Montenegro
  • New: Remove Compliance Test mode
  • New: Lock selected country for all EU countries/Switzerland. Reset to factory defaults is required to order to change country
  • New: Available frequency list is updated for UK when operating in 30MHz channel width


  • New: Remote Provisioning Functionality for AirGateway


  • airMax: Rate drops when using narrow channel widths on AP with more than 30 clients
  • Ethernet: Ethernet negotiation issues after ESD damage
  • NanoBridge M5: Cold temperature issues


  • Fix: DFS frequencies are not functional for Canada (Rocket M5 Titanium)

  • Fix: Possible fix for unexpected AP reboots

  • Fix: Auto IP Address generation for MAC addresses ending with FF:FF and 00:00

  • Fix: SSL server accepts weak ciphers

  • Fix: SSH server (dropbear) update to version v2013.58

  • Fix: Disabling DHCP server leaves dnsmasq running

  • WEB UI: Automatic FW download from web site

  • WEB UI: Validate location coordinates

  • WEB UI: Copyright updates

Version 5.5.6-Service Release (June 03, 2013)

Regulatory updates:

  • New: Lock country code for Ukraine

  • Fix: Rocket M5 Titanium: DFS band unlock with authorisation key

  • Fix: Remove DFS enable/disable option for EU/Switzerland, turn DFS ON after FW upgrade

  • Fix: Update maximum EIRP from 20dBm to 23dBm for EU countries (indoor range)

  • Fix: Update maximum EIRP from 20dBm to 23dBm for Vietnam (in frequency range 5150-5350 MHz)

  • Fix: Regulatory update for Norway (5GHz band frequencies and EIRP limits update)

  • WEB UI: Channel list with indication for Indoor channels (EU/Switzerland)

  • WEB UI: Possibility to hide indoor channels (EU/Switzerland)


  • Fix: Sometimes AP stops passing traffic in PtMP setup
  • Fix: UAPSD power saving problems
  • Fix: In some cases web server may lock up after some time due to memory leak (possible fix)
  • Fix: Polycom SpectraLink 8030 wireless phone connection issues
  • Fix: AirGrid M5 HP: Change Antenna gain from 28dBi to 27dBi according antenna specification

Version 5.5.4-Service Release (March 13, 2013)


  • New: Data rate module: Alternative data rate algorithm option
  • New: WEB UI: Audio option for Antenna Alignment Tool
  • New: WEB UI: “Feed only - 3dBi” option for antenna type (AirGrid and NanoBridge models only)


  • airMax: Improved performance in PtMP scenarios

  • airMax: Lower latency in Long Range PTP mode

  • airMax: Voice performance/latency improvements in PtMP scenarios

  • QoS: Map commonly used VoIP TOS values (0x68, 0xb8) to Voice queue

  • Speed test: Improved timeout/errors handling and reporting

  • TFTP recovery: Reset configuration to factory defaults when executing TFTP recovery mode without need to hold Reset button for 15sec and upload firmware image

  • airView: Update certificate

  • WEB UI: Show if custom scripts are present on device

  • WEB UI: Show signal strength from remote radio in Station information window (airMax mode only)

  • WEB UI: Show Station TX/RX bit rate statistics

  • WEB UI: Disable WEB UI while airView is running

  • WEB UI: Automatically redirect to HTTPS port when running Speed test

  • WEB UI: Make MAC addresses in Main page easily selectable

  • WEB UI: Add help text for UBNT/Advanced settings pages

  • WEB UI: Improved FW update failure messages

  • WEB UI: Do not offer to apply configuration changes if there are no any changes made

  • WEB UI: Latitude/Longitude setting validation

  • WEB UI: Interface Language update: French translations

  • WEB UI: Interface Language update: Lithuanian translation

  • Stability: Check filesystem on boot

  • Stability: Memory leak protection for less than 1MB of RAM

  • Stability: HW watchdog in u-boot


  • Fix: airMax: Radio is transmitting when operating in airView mode (AP mode only)
  • Fix: airMax: Long range PtP mode: AP gets stuck at 81Mbps rate and transmit throughput goes down
  • Fix: airMax: Sometimes AP locks up when applying configuration changes (possible fix)
  • Fix: airSync: Rocket Titanium airSync Slave doesn’t connect to airSync Master
  • Fix: airSelect: Default airSelect announce count set to 30
  • Fix: airView: airView does not start when Device Name contains comma symbol
  • Fix: airView: M900/M3/M365/M6 products does not scan full frequency range
  • Fix: Detect Ethernet loopback on defective device and bring Ethernet interface down
  • Fix: Sometimes M Series devices hang during reboot (except Titanium)
  • Fix: Change Max MTU to 2024 bytes on both Ethernet interfaces
  • Fix: Returning from Test mode does not revert some configuration changes
  • Fix: Redirection issue when enabling/disabling HTTPS
  • Fix: Satellite signal bar is centred under IE
  • Fix: During upgrade disable default route if DHCP client is configured
  • Fix: DHCP fallback IP isn’t set
  • Fix: Memory leak in Main page with IE8/IE9 (session timeout implemented)
  • Fix: Low power mode fix for newer revisions of NanoStation M5
  • Fix: Device discovery issue when DMZ port is enabled
  • Fix: Cannot switch from Advanced to Simple Configuration mode when network role is Router
  • Fix: Auto Channel does not follow channel plan for Canada (Rocket Titanium)
  • Fix: OSPF and other unregistered multicast traffic transmit problems in PtMP
  • Fix: Skip EAP security certificate date validation if device date is before certificate start date
  • Fix: Do not send discovery/ARP requests through bridge ports
  • Fix: Enable busybox option to prefer IPv4
  • Fix: UPnP: Router should accept “PORT FORWARD” requests from LAN side only
  • Fix: Sometimes station can’t associate when switching from open to WPA security
  • Fix: Enable DFS when choosing country Austria
  • Fix: Disable “Block Management” option for WAN in default configuration (AirRouter, AirRouter HP, PowerAP N)

Regulatory updates:

  • Enable DFS for Germany upper band (5.8GHz) channels
  • Update New Zealand allowed frequencies for 5GHz
  • Update Chilean allowed frequencies for 5GHz

Version 5.5.3-Production Release (October 25, 2012)

New product support:

  • New: Rocket M6
  • New: AirGrid M2 HP (re-designed)
  • New: AirGrid M5 HP (re-designed)

Version 5.5.2-Service Release (August 17, 2012)

New product support:

  • New: Rocket M2 Titanium
  • New: Rocket M5 Titanium
  • New: NanoStation M6

Regulatory Updates:

  • New: Enable DFS frequencies for US/Puerto Rico/ Canada for NanoStationM5/Loco M5/Rocket M5/Rocket M5 GPS/NanoBridge M5 models
  • New: Lock Indonesia country code: once selected at Login page do not allow to change country unless reset to defaults
  • New: Remove DFS enable/disable option for Austria, turn DFS ON after upgrade for Austria. Keep DFS enable/disable option for rest of EU countries
  • Fix: Regulatory rules update for India 2.4GHz band
  • Fix: Move Puerto Rico under US regulatory domain


  • Fix: AirMax: When one of the clients reboot all others are disconnected from AP

  • Fix: AirMax: Unexpected device reboots on high load/PTMP (possible fix)

  • Fix: Traffic shaping ingress rules on LAN port in some cases block Internet traffic

  • Fix: Traffic shaping bursting is increased to the maximum allowed value according to configured throughput limits

  • Fix: Association to non-broadcasting SSID CISCO AP takes couple minutes

  • Fix: Complex AP-repeater setup creates loop in this network

  • Fix: Increase Password attribute length to 18 when sending empty password to RADIUS server

  • Fix: Auto Channel selection logic improvement

  • Fix: DFS: Allow UNII-2 band for Canada w/o unlock key for approved product models

  • Fix: Traffic Shaper rules changes during upgrade from v5.3.5

  • Fix: PPPoE stops sending PPPoE Discovery packets on time change

  • Fix: NBM3/NBM365 should support 2 Ethernet ports but shows only 1.

  • Fix: Aggregated transmission problems with some Apple laptops and other devices

  • Fix: Clients can’t reconnect to AP with WPA2-AES security reason (15)

  • Fix: After upgrade from v5.3.5 to v5.5 secondary Ethernet port isn’t configured (running default configuration)

  • Fix: Stations disassociation because of returned broadcast packets on Ethernet interface

  • Fix: Second LAN port MTU max is 2024B not 1614B (affected all M series products)

  • Fix: No Internet connection for clients behind device in router mode

  • Fix: Access Point ignores Session-Timeout limit received from RADIUS server

  • Fix: Reduce false positives and misclassifications of invalid DFS radar events

  • Fix: Can’t launch Airview when initial window disabled

  • Fix: Making changes in Network tab resets MTU to 1500 when Management VLAN is enabled

  • Fix: Incorrect ebtables VLAN drop rules

  • Fix: Do not allow to upload Configuration file from different Regulatory domain

  • Fix: Port Forwarding public port range issue

  • WEB UI: Show DFS status in MAIN page

  • WEB UI: airSync: Show correct default slots depending on channel size

  • WEB UI: Static route disappears in Router mode

  • WEB UI: Option to disable Multicast Enhancement for AP

  • WEB UI: Improved IP address validation

  • WEB UI: Don’t enable “DMZ Management Ports” when DMZ is enabled (Router/SOHO Router)

  • WEB UI: Bridge table display problem. Table too big

  • WEB UI: Do not show graph for interface when it is not in use

  • WEB UI: Don’t report TOUGHSwitch/airCam WLAN mode in device discovery results

  • WEB UI: Add Turkish language support

  • WEB UI: In Simple configuration mode LAN should be BRIDGE0 containing both Ethernet interfaces

  • WEB UI: Show the same antenna information in MAIN page as in Wireless settings page drop down

  • WEB UI: Site Survey Scan button is disabled under IE browser

  • WEB UI: Allow MAC Cloning for BRIDGE interface in Router mode

  • WEB UI: Bridge table is not displayed in Main page when there are multiple bridge

Security Improvements:

  • WEB UI: Default settings change: Enable HTTPS (port 443) by default
  • WEB UI: Removed admin.cgi functionality
  • WEB UI: Add option to disable HTTP service
  • WEB UI: Add reminder when using default admin user name/ password

Version 5.5 - Final Release (April 10, 2012)

New product support:

  • New: Bullet M2 Titanium
  • New: Bullet M5 Titanium
  • New: NanoStation M900

New functionality:

  • New: Management VLAN support
  • New: Advanced network settings configuration mode
  • New: RADIUS MAC authentication
  • New: Low TX power mode support for all M series models
  • New: AirMax client support for 802.11 a/b/g products
  • New: DHCP relay functionality in Router/SOHO Router mode
  • New: UPnP server support in Router/SOHO Router modes
  • New: Ability to Block WAN Access in SOHO Router mode
  • New: Fallback IP for PPPoE client
  • New: 3/8 MHz channel width support for M900
  • New: 8/30 MHz channel width support for M2/M5
  • New: 8/25 MHz channel width support for M3
  • New: 25 MHz channel width support for M365
  • New: Full range of channel width options in Compliance mode
  • New: Max allowed MTU size for newer HW revision models is 2024 bytes
  • New: Make Device name the Product Model by default
  • New: Separate throughput graphs for LAN0/LAN1 interfaces
  • New: Option to create support info file with ping watchdog before device reboot
  • New: Enable/Disable CDP option in Device Discovery section
  • New: Check for existing uploaded firmware image when opening System page
  • New: Prepare for IPv6 support
  • New: Traffic shaper for ingress traffic
  • New: Notification for software updates
  • New: Add PPPoE service name configuration
  • New: Kernel patches for SIP conntrack/NAT support
  • New: Show AirMax priority in Main page for Station mode


  • Fix: Configuration change causes device with a long uptime to lock up
  • Fix: Device stops passing traffic after some time and requires a reboot or “kick” to work again
  • Fix: Dynamic DNS update after PPPoE session initialization
  • Fix: Station list is empty when there are few stations associated
  • Fix: Port ID is mandatory in CDP packet
  • Fix: STA-WDS in bridge mode is passing back multicast/broadcast packets
  • Fix: “Antenna Gain” and “Cable Loss” fields are locked for LocoM900 with external antenna
  • Fix: Incorrect connection time reporting
  • Fix: Timestamps reset because of stuck beacon. Causes other manufacturers’ (i.e. Tranzeo) devices to re-associate.
  • Fix: Can’t launch airView with HTTPS enabled on IE8
  • Fix: Traceroute fails to DNS host with multiple addresses

Improvements/Change requests:

  • Improvement: Linux kernel update to 2.6.32 version
  • Improvement: AirMax performance in large PtMP networks
  • Improvement: AirSync performance in PtMP networks
  • Improvement: ACL List: Dynamic list now allows instant changes (no restart or dropped connections required)
  • Improvement: ACL List: MAC list limit increased from 64 to unlimited
  • Improvement: ACL List: Ability to add comments to MACs
  • Improvement: ACL List: Ability to enable/disable a MAC without removing it from the list
  • Improvement: DFS functionality improvement according FCC/ETSI requirements
  • Improvement: Report Horizontal / Vertical antenna instead of “Chain 0 / Chain 1”
  • Improvement: New look for wireless mode configuration
  • Improvement: Various WEB GUI tweaks, changes, improvements
  • Improvement: Send NASID in Access-Request packet.
  • Improvement: Add internal speed test tool to DMZ exemption ports
  • Improvement: Hide Discovery Tool for read-only account
  • Improvement: Extension for Port Forward configuration. Allow to specify Public IP

Regional Updates:

  • New: Initial Login page with Country/Language selection
  • New: Replace Obey Regulatory rules with Auto Adjust to EIRP Limit functionality
  • New: Remove possibility to change country for some countries (USA, Spain)
  • New: Remove indoor range for Brazil (5.1-5.3GHz frequencies)
  • New: Show Band C for UK Frequencies
  • New: Add Iraq country code
  • New: Add Nigeria country code
  • New: EIRP limits for US Regdomain on 2.4GHz and 5.8GHz band
  • New: Add German translation
  • Fix: Regulatory rules update for Australia
  • Fix: Devices with selected country Ukraine doesn’t work in 5GHz band

Additional Notes:

  • Note: SNMP interface indexes have changed with v5.5 due to advanced network configuration options
  • Note: AirControl v1 Configuration changes are not supported with v5.5 firmware
  • Note: Possible Web UI issues with out of date browsers (i.e. Firefox 3.6). It’s recommended to use current browser software

Version 5.3.5-Service Release (December 19, 2011)

  • Fix: HTTP server security exploit

Version 5.3.3-Service Release (July 26, 2011)

Improvements/Change requests:

  • Improvement: AirMax: Client’s upload speed is low (compared to Download)
  • Improvement: AirMax: Performance decrease when adding additional clients and using 10MHz/5MHz channel widths
  • Improvement: AirMax: VoIP traffic quality in PTP mode for 10MHz/5MHz channel widths


  • Fix: AirMax: Low performance when PTPnoACK is ON and operating in 40MHz/20MHz channel widths

  • Fix: NanoStation M5/M2 hangup issue using PoE pass through functionality (possible fix)

  • Fix: Power saving issues with some mobile phones

  • Fix: Tranzeo and other clients continuously disassociate from UBNT AP due to timestamp changes after stuck beacon appears

  • GUI fix: WPA-PSK key is truncated on operating mode change

  • GUI fix: Changed redirection code from 301 to 302 to not cache data. Solves redirection problem when using Firefox 5.0 web browser

Version 5.3.2-Service Release (May 3, 2011)

  • New: AirRouter HP support
  • New: Completely remove non 5.7-5.8 GHz frequency for US and Canada country code
  • New: Auto Adjust to EIRP Limit replaces Remove Obey Regulatory Rules

Improvements/Change requests:

  • Improvement: WPA/WPA2-TKIP security stability improvements in noisy environments
  • Improvement: CCQ calculation
  • Improvement: AirMax performance


  • Fix: Possible memory corruption fix

  • Fix: Return Channel Shifting for M900 and M365 products

  • Fix: Connectivity issues for some mobile devices

  • Fix: Speed test and traffic shaper issue

  • Fix: Invalid connection time (49,689 days) reporting issue

  • Fix: Send gratuitous ARP reply on bridge MAC change (when starting AirView)

  • Fix: MIC errors encountered in high interference case if aggregation is used

  • Fix: PPPoE authentication doesn’t work through STA bridge with some routers

  • Fix: Multicast routing does not work in SOHO-Router mode

  • GUI fix: Hide “Auto Adjust to EIRP Limit” checkbox for Compliance test country code

  • GUI fix: Disabling “Enable Installer EIRP Control” option, when “Auto Adjust to EIRP Limit” isn’t enabled, allows to apply settings without any real changes

  • GUI fix: Change warning message, when turning off “Installer EIRP Control”

  • GUI fix: Under IE Stations list table header text should not be wrapped

  • GUI fix: Site Survey doesn’t return scan results in 10 MHz channel width

  • GUI fix: Enable Discovery checkbox is not intuitive under “AirControl”, move under Service menu

  • GUI fix: Report allowed port range when configuring System services

  • GUI fix: Site survey does not always return scan results

  • GUI fix: Ad hoc device mode in Site survey returns symbols

  • GUI fix: Strange TX/RX values in throughput graphic under IE9

  • Fix: AirControl agent: Incorrect WLAN connection count reporting

  • Fix: AirControl agent: Invalid wlanUptime reporting

Version 5.3 - Final Release (January 14, 2011)

New product support:

  • New: NanoBridge M365 support
  • New: NanoBridge M900 support
  • New: NanoBridge M3 support

New functionality:

  • New: AirSelect

  • New: VLAN tagging: one VLAN per device

  • New: Low TX power mode for Rocket M5/Rocket M2

  • New: DFS enabled by default for all 5GHz products

  • New: Discovery Tool

  • New: Ubiquiti Logo Tab

  • New: Remove outside 5745-5825 MHz frequency range for US country (all M series devices)

  • New: NanoStation Loco M900: external and internal antenna support scenario

  • New: Ability to enter device location (for AirControl server)

  • AirControl agent: Support for GPS location reporting

  • AirControl agent: Support for latency reporting

  • AirControl agent: Configuration changed indicator

  • AirControl agent: Report network adapter status/speed

Improvement/Change requests:

  • CCR: Add Auto Frequency functionality (AP/AP WDS mode)

  • CCR: Jumbo frames support (maximum allowed MTU is 1518 bytes of data)

  • CCR: Remove Device name 14 characters limit

  • CCR: Sensitivity threshold settings for wireless clients

  • CCR: Add possibility to configure DNS address in DHCP server configuration

  • CCR: Port Forwarding should support Source IP/mask criteria

  • CCR: Dynamic DNS support

  • CCR: Improve Firewall rules with ACCEPT

  • CCR: Ability to turn auto discovery off under Ubiquiti logo tab/AirControl

  • CCR: Remove Refresh button from Main page as it already have auto refresh function

  • CCR: New regulatory rules for Germany (5755-5875MHz frequencies removed)

  • CCR: Lock to AP MAC functionality for Station/Station WDS

  • CCR: Make all columns in Stations list sortable

  • CCR: Report negotiated Ethernet port speed on Main page

  • CCR: Singapore frequency range changes (remove outside 5725-5850 MHz frequency channels according Regulatory Rules)

  • CCR: Turkey frequency range changes (add 5470-5725 MHz frequency channels according Regulatory Rules)

  • Improvement: WPA/WPA2 EAP-TTLS improvements

  • Improvement: Connection stability improvement when using WPA/WPA2 security

  • Improvement: Wireless driver improvements, when communicating to mobile devices using Power Saving

  • Improvement: Functionality set for Indoor products (ability to turn on/off AirMax technology features)

  • Improvement: DMZ configuration to allow more control over management ports


  • AirMax: PPPoE latency in PtMP network with more than 22 clients connected to AP

  • AirMax: ICMP ping doesn’t pass wireless link

  • AirMax: Big delay when transmitting IGMP packets

  • AirMax: TX Data rate gets stuck on 81 Mbps, when using No ACK mode for PtP and 40MHz channel width #1618

  • AirMax: Voice quality issues in PtMP network

  • Fix: Double Auth/Assoc using WPA/WPA2 security when connecting to the AP

  • Fix: STA disassociation during WPA/WPA2 group key exchange (affects AES and TKIP security)

  • Fix: No connection or persistent station disassociation when at least one station is connected with low RSSI

  • Fix: Enabling Client isolation inflicts AP WDS (repeaters) to stop talk with neighborhood AP WDS

  • Fix: Intel clients are de-authenticated during rekeying

  • Fix: Stability improvements when more than 8 clients connected and some of them are using power save mode

  • Fix: Improved power saving handling (Nokia, HTC phones)

  • Fix: PS Poll problems

  • Fix: MAC changing doesn’t work in AP (Router/SOHO Router) mode

  • Fix: Throughput slowdown for 2.4 GHz Station when to the same AP is connected at least one AP-WDS peer

  • Fix: Previously configured default gateway isn’t disabled when WAN interface is configured to obtain IP settings from DHCP server (SOHO Router mode)

  • Fix: Ukraine is missing in Country Code list

  • Fix: Enable obey regulatory rules in default configuration for PowerAP N/AirRouter

  • Fix: Sometimes devices behind STA-WDS are not reachable from AP-WDS LAN side

  • Fix: Auto IP aliasing doesn’t set IP address if DHCP client is enabled

  • Fix: In AP Router or SOHO-Router mode LAN interface can’t be disabled if DHCP client is running on it

  • Fix: Auto IP aliasing duplicates and is incorrect

  • Fix: DHCP Fallback IP is not removed after getting IP from DHCP server

  • Fix: Improved wireless client roaming between AP-WDS peers

  • Fix: Channel list is required on AP/AP-WDS when enabling DFS

  • Fix: Multicast traffic doesn’t pass PtP link, when client is using IGMPv3 reports

  • Fix: Ebtables module should support VLAN criteria

  • Fix: Low Data Rates and CCQ value when link is idle

  • Fix: After upgrade DHCP server serves LAN IP as DNS server when DNS proxy is disabled

  • Fix: NTP client request interval should be tuned for DHCP Client use case

  • Fix: Auto ACK miscalculation, when connected to 802.11a/b/g devices operating in HT5/HT10 channel width

  • Fix: Auto ACK calculates incorrect value for very short distance

  • Fix: PPPoE client hold off time is not correct

  • Fix: PPPoE client is not restoring session after wireless link connection loss

  • Fix: Send proper disconnect command to PPPoE server when restarting PPPoE session

  • Fix: ARPNAT and PPPoE relay issue

  • Fix: AirControl agent: Location values are not reported to AirControl Server

  • Fix: DFS: AP doesn’t restore operation after 30 min silence

  • Fix: DFS: Remove Radar detection capability on STA mode when operating up to 200mW EIRP

  • GUI fix: Max power of AirGridM2/AirGridM5 products is 20dBm not 19dBm

  • GUI fix: Make VLAN network settings in Bridge mode as separate option

  • GUI fix: Reset to defaults redirects to incorrect IP address in SOHO Router mode

  • GUI fix: Pop-up windows are not closed on “save” action if parent tab is changed #1668

  • GUI fix: Reports two LAN ports on Main page for when device has only one

  • GUI fix: When DNS proxy is disabled, take DNS from WAN and fill DNS fields for DHCP server automatically

  • GUI fix: DHCP client info is not updated after Renew

  • GUI fix: Read-only user permission/redirect issue

  • GUI fix: In SOHO Router mode throughput graphic for LAN does not include traffic that goes only on WLAN interface

  • GUI fix: Change AirMax priority returns incorrect Warning message

  • GUI fix: ACK distance reporting issue in Station Details and AP information

  • GUI fix: “Source IP/mask” field in port forwarding should allow 18 characters

  • GUI fix: FW upgrade “Close Window” button is not functional if Parent Window is closed

  • GUI fix: Misbehavior with Obey Regulatory Rules

  • GUI fix: Password field and “Show” checkbox wraps

  • GUI fix: Add Antenna model selection for NanoBridge M5 (22 dBi antenna (NBM5-22) and 25 dBi antenna (NBM5-25))

  • GUI fix: IP aliasing is not correct in SOHO Router mode

  • GUI fix: Output Power slider position when min value is selected

Version 5.2.2 - Service Release (October 14, 2010)

  • New: AirGrid HP M product support
  • Fix: Wrong max power limit after reset to defaults for some products

Version 5.2.1 - Service Release (September 13, 2010)

  • New: Rocket M365 support
  • New: Rocket M900 support
  • New: NanoStation M365 support
  • New: NanoStation Loco M900 support

Improvements/Change requests:

  • Improvement: DFS functionality enhancements
  • Improvement: Improve 10/5MHz channel width stability
  • Improvement: IGMP proxy
  • Improvement: Multicast traffic
  • CCR: Increase maximum allowed DHCP server lease time to 48h
  • CCR: Allow more than 128 associations with security off
  • CCR: Add GUI option to disable reset button. Prevents from accidental configuration reset to factory defaults


  • Fix: AirMax: Packet loss just after client association to the AirMax AP

  • Fix: AirMax: STA Transmission Queue stuck, need a reset

  • Fix: AP wireless stops operating

  • Fix: Station stays connected to AP, but no wireless traffic is available

  • Fix: Multicast enhancement does not handle VLAN tagged traffic

  • Fix: AutoACK calculation issue specific for NanoBridge M5/AirGrid M5/NanoStation Loco M5 devices

  • Fix: AutoACK on AP calculates incorrect values to 802.11 b-only stations

  • Fix: Ipod iTouch freezes Internet connection for laptops, which have Intel wireless radios

  • Fix: AP is using the lowest TX rate (6Mbps), when communicating with 802.11 a/b/g Stations and using WEP/WPA-TKIP/WPA2-TKIP security

  • Fix: AP scans only upper or lower channels in 40 MHz channel width

  • Fix: AP(WDS) in 40 MHz channel width can connect AP(WDS) in 20 MHz channel width

  • Fix: MAC Address change in Station-Router mode results WPA failure

  • Fix: Devices behind STA-WDS in PtMP network, sometimes becomes unreachable

  • Fix: PowerAP N WLAN LED is not shining when RSSI level is less than 30

  • Fix: MAX EIRP 36dBm for 2.4GHz band in Australia

  • Fix: SNMP: Report correct IF-MIB interface speed OID values

  • Fix: CCQ calculation with auto rates are used

  • Fix: AirView: Application does not return scan results on NanoBridge M2/NanoStation Loco M2

  • AirControl Agent: Restore console reporting after wireless association is restored

  • AirControl Agent: Report association time

  • AirControl Agent: Odd behavior with discovery response

  • AirControl Agent: Ping is not restoring connection when AirControl server is unreachable on startup

  • GUI fix: Status and Site survey pages fails to render if SSID has escape character(s)

  • GUI fix: Speed Test fails if using special symbols in password

  • GUI fix: Speed tests doesn’t work if HTTPS port has been changed

  • GUI fix: When disabling scan list, previously selected channels are unchecked

  • GUI fix: new Chrome-BETA conflicts with Web UI validation framework

  • GUI fix: Fixed rates uses SGI(400 ns) rate table

  • GUI fix: Read only user can access device configuration file

  • GUI fix: Sometimes Station list is empty

  • GUI fix: Show static routes in Main page, when operating in Bridge mode

  • GUI fix: Special Char escaping required for SNMP settings

  • GUI fix: Destination IP field validation is missing

Known issues:

  • Sometimes Station disassociates during WPA/WPA2 group key exchange

Version 5.2 - Final Release (May 14, 2010)

  • New: Speed test tool
  • New: AirView tool (Spectrum Analyzer mode)
  • New: Routing scenario: Network mode “Soho Router”
  • New: NanoStation M5/M2 Second Ethernet port functionality – now it is possible to bridge with wireless port
  • New: Antenna gain and cable loss fields for compliance
  • New: AirMax ON in default configuration
  • New: Intelligent GUI improvement
  • New: Console agent: Restore active heartbeat connections after firmware upgrade
  • New: Report 802.11 information messages into syslog
  • New: Improve ACL rules management: increase max MAC ACL entry count to 32
  • New: Remove DFS 5250-5350 frequency for US country code (all M series products) , but keep the link alive if DFS frequency was used

Improvements/Change requests:

  • CCR: RADIUS client support in AP mode
  • CCR: PEAP/MSCHAPv2 support
  • CCR: Add static routes via WEB UI
  • CCR: Show Station and AP IP address
  • CCR: Hide WPA password with “*”
  • CCR: Ability to de-associate station from Station list via WEB UI
  • CCR: Add support for SSH authorized keys in configuration file
  • CCR: Change apply configuration logic
  • CCR: Missing ppp0 interface information on Main page, when PPPoE session is initialized
  • CCR: Add System Startup Time/Date field (critical for 802.1x supplicant)
  • CCR: Allow ping when device is in TFTP recovery mode
  • CCR: Include PPTP/GRE NAT modules
  • CCR: Add MAC clone/change option for WAN interface when operating in SOHO router mode
  • CCR: Report AirMax priority and AMQ/AMC in Station detail
  • CCR: Speed test: Show total throughput (RX + TX)
  • CCR: Make IP address in stations list as hyperlink
  • CCR: GUI: Show/hide Traffic shaping configuration
  • CCR: GUI: Add option to enable/disable NAT modules on router: SIP, PPTP, FTP, RTSP
  • Improvement: Speed test: resolves TX/RX difference
  • Improvement: In memory allocation


  • Fix: TX Power improvement for NanoBridge M5, AirGrid M5, NanoStation Loco M5, Bullet M2, Rocket M2, NanoStation M2, NanoBridge M2

  • Fix: Chain signal mismatch on reported signal strength/ Power control for M5 2x2 chain devices

  • Fix: Sometimes Auto ACK values gets too high

  • Fix: Max power level for Australia

  • Fix: Speed test + AirMax PtP No Ack combination crashes AP

  • Fix: Traffic Shaping is not functional except Soho Router mode

  • Fix: Traffic Shaping Burst is for functional

  • Fix: WPA security : Sometimes station is disassociated from AP

  • Fix: Broadcast traffic is duplicated on AP-WDS

  • Fix: NAT protocols state changes when changing security

  • Fix: SNMP wrong OID type: Disallow port range as destination (to private subnet)

  • Fix: SNMP reports incorrect wireless stats

  • Fix: Station can not connect to AP (MAC Locked) if it was connected to another AP with the same SSID

  • Fix: Signal reporting

  • Fix: Improve noise level calculation

  • Fix: Noise floor is too aggressive

  • Fix: Auto ACK on AP

  • Fix: No more trimmed channels on Compliance country code

  • Fix: Airmax: PTMP ping loss issue after beta6

  • Fix: AirMax: PTPNack AMQ/AMC fluctuation

  • Fix: AirMax: PTP and PTMP enhancements (latency)\

  • Fix: Airview: Sometimes switching back to normal operating mode is endless

  • GUI fix: Problems with WPA PSK paraphrase: old value is displayed, new value is not saved

  • GUI fix: Sometime Device name in not reported in Stations list

  • GUI fix: Do not show clients as connected when authentication key is not valid

  • GUI fix: Test mode. Timing is no so precise as stated in the warning message

  • GUI fix: Need correctly display ACK/Distance when AirMax and PtPNoACK mode is enabled

  • GUI fix: Name -> Device Name

  • GUI fix: Grammar error in warning message

  • GUI fix: MCS1 is always reported in AP/Station statistics

  • GUI Fix: IE8 and WEB UI errors

  • Fix: Frequency list issue fix for counties:
    South Africa
    Sri Lanka

Known issue:

  • Limitation from HW: MCS13 does not work with WEP/WPA/WPA2/WPA-TKIP/WPA2-TKIP security – MCS 13 removed from WEB UI

Version 5.1.2 - Service Release (February 9, 2010)

  • MAJOR: Fixed ARP broadcast issues in WDS mode
  • MAJOR: Added Mikrotik Station WDS support
  • MAJOR: Fix to allow VLAN pass through on secondary Ethernet port (NanoStation M)
  • AirMax: Fixed AMC calculation when using fixed rate

Version 5.1 - Final Release (January 07, 2010)

  • Throughput improvement for AirMax in PtP environment

  • Throughput Improvement for AirMax in 2.4 GHz 40 MHz channel width

  • Fixed lower throughput issue when using AirMax No ACK mode for PTP in 40 MHz channel width

  • Fixed ping latency issue when AirMax is enabled

  • Improvements in wireless stability

  • New: Show station ACK value in Station list under Monitor section

  • New: Added ip_conntrack_sip support

  • Fixed UI issue with signal reporting

  • Fixed missing channels in Channel scan list (20/40 Mhz auto)

  • GUI: Show only 50% as a max AMC value for 1x1 chain devices

  • Fixed DNS proxy and DHCP server configuration issue

  • Fixed issue in site survey: cannot select AP when scanning in 5/10 MHz channel width mode

  • Fixed issue in admin password: cannot login with admin password when symbols ($, \ or ') are used

Version 5.1-RC3 (December 21, 2009)

  • New: Auto rates with MAX value setting

  • New: AirMax No ACK feature for Point-to-Point links

  • MAJOR: Fixed WPA/WPA2 clients connection stability

  • MAJOR: Wireless link stability fix when AirMax is OFF

  • MAJOR: Memory allocation issue on AP with more than 60 clients

  • MAJOR: Performance improvements in 2.4 GHz

  • Auto ACK improvements

  • Administrator password limit is 8 symbols

  • Allow to increase Logout session timeout

  • Allow to disable password authentication for SSH

  • 5 MHz channel width is back in 2.4GHz mode

  • GUI: AirMax made as separate section under Advanced setting menu

  • Fixed GUI issue in AP Mode, Connections shows 0 when more then 45 clients are actually connected

  • Fixed MAC expiration issue in Bridge-WDS

  • Fixed passing VLAN tagged packets with V5.1-Beta

  • Fixed CCQ value when no data

  • Show B/G/N mixed instead of Ng, A/N mixed instead of Na

  • Fixed Signal Level reporting in UI (RSSI chain mismatch)

  • Fixed Data rates selection and reporting

  • Fixed download backup configuration file or Support info file issue if using IE browser

Version 5.1-beta (November 20, 2009)

  • New: 802.11 a/b/g products support

  • New: WEP and WPA/WPA2 TKIP security support

  • New: Advanced Ethernet settings

  • New: Web server change

  • New: AirMax 4 level MAC address based priority

  • New: AirMax automatic Voice packet recognition and TXQ assignment

  • New: AirMax No Ack (PtP Mode only). Can be enabled only in the config file for the AP by setting radio.1.pollingnoack=1

  • New: auto ACK implementation

  • Added Arpnat support for more than one IP address per single bridged MAC address

  • Updated PPPoE version

  • Ethernet driver update

  • Added hardware watchdog timer

  • Fixed stability issue on link when Airmax is disabled

  • Fixed PPPoE Stability in 40 MHz channel width (PPPoE session disconnects due to the no response to 5 echo-requests)

  • Fixed WPA/WPA2 client connection issue to AP

  • Removed US country code DFS frequencies: 5500-5700 GHz

  • Separated L2 isolation and multicast traffic

  • Fixed issues in PPPoE daemon when compression enabled

  • Fixed switch off for Extra reporting (MT discovery protocol)

  • Fixed incorrect CDP packet check sum

  • No more FTP speed limits per session when AirMax enabled

  • Fixed Compliance test country frequency range for 20/40 MHz channel width

  • Fixed SNMP OID numbers persistence (SNMP daemon enumerates all interfaces on startup and assigns sequential numbers now)

  • Fixed Web UI lock

  • Fixed read-only user account

  • Improved signal strength value in 40 MHz channel width

  • Fixed signal strength per chain handling when station disconnects from AP

  • Fixed data rates reporting for 10Mhz channel width for 802.11 a/b/g clients

  • Improved Noise Floor reporting

  • Improvement in data rate reporting when traffic is inactive

  • Added Device Name in Station and AP statistics table

  • Fixed ARP table entry reporting if it contains unresolved MAC address

Version 5.0.2 - SERVICE release (October 23, 2009)

  • Fixed Chain 1 association problem in 802.11a mode
  • Fixed Compliance test channels in 5 MHz step instead of 20 MHz
  • Added VLAN support in Ethernet driver

Version 5.0.2-RC6 (October 17,2009)

  • Final Ethernet lockup fix

Version 5.0.5-RC5 (September 26, 2009)

  • Uboot fix

Version 5.0.2-RC4 (September 25, 2009)

  • Increased Reset to Defaults/Rescue mode timing (triggered from POE and Reset button)
  • Added ability to disable reset to default function (from PoE and Reset button) in config

Version 5.0.2-RC3 (September 23, 2009)

  • Ethernet lockup fix
  • Fixed SNMP agent to report correct values

Version 5.0.2-RC2 (September 18, 2009)

  • Fixed web UI slow responses (aka web server loop) on Windows7/IE8 version: 8.0.7057.0
  • Fixed PPPoE reconnection issue
  • Fixed PPPoE client DNS server issue
  • Fixed LAN interface disabling
  • Use device name as Web UI Authentication Realm name (allows to use Google Chrome)
  • Show FW version on Main page
  • PPPoE client can’t authenticate if in username symbol # is used
  • Fixed connection on low signals: noise immunity is switched off by default. Added ability to change noise immunity on/off in config (not available on UI)
  • Fixed AirMax lockup
  • DHCP server doesn’t work if DNS proxy is disabled

Version 5.0.2-RC1 (August 31, 2009)

  • Added Compliance test country code
  • Added information text in survey window
  • Fixed Memory leak when scanning
  • Fixed selected channels scanning
  • Fixed WPA/WPA2 association to AP with hidden ESSID on passive scan channels
  • Fixed Product Logo displaying if no logo image for device
  • Fixed firmware version reporting
  • Fixed Rate control algorithm is too aggressive in noisy conditions
  • Fixed AirMax AP lock after some time
  • Fixed combined signal report in align antenna tool for 2 chains devices
  • Fixed hangup issue in router mode with firewall enabled (aka ethernet/iptables fix)
  • Fixed scan results for more than 14 stations issue
  • Fixed AMC values for 1x1 device should not show more than 50%
  • Fixed connected stations reporting for more than 22 stations issue

Version 5.0 (June 16, 2009 RELEASE)

  • New: UI design
  • New: AirMax functionality
  • New: 5/10/20/40 MHz channel width support
  • Improvement: CCQ formula