<![CDATA[UFiber | Releases | Ubiquiti Community]]> https://community.ui.com https://community.ui.com/images/og-image.jpg UFiber | Releases | Ubiquiti Community https://community.ui.com Ubiquiti Community Wed, 30 Sep 2026 21:47:06 GMT Wed, 30 Sep 2026 21:47:06 GMT <![CDATA[UFiber 4.10.3]]> Overview

UISP Fiber version 4.10.3 firmware provides bug fixes related to UF-Loco and UF-Nano ONU port forwarding and DHCP static lease provisioning.

Bugfixes

(UF-Loco, UF-Nano) Fixes port forwarding rules and static DHCP lease provisioning.

]]> https://community.ui.com/releases/UFiber-4-10-3-4-10-3/8467d8d2-cc93-463f-9726-9d1c874b2fda 8467d8d2-cc93-463f-9726-9d1c874b2fda Mon, 23 Feb 2026 13:10:18 GMT <![CDATA[UFiber 4.10.2]]> Overview

UISP Fiber version 4.10.2 firmware provides bug fixes and performance improvements.

Improvements

  • Wave-Fiber-ONU: Improved MAC address learning in large networks.
  • Wave-Fiber-ONU: Added packet storm protection.
  • Wave-Fiber-ONU: Improved IPv6 handling.

Bugfixes

  • OLT: Fixed an issue where the OLT could become unresponsive due to memory consumption by large UDAPI requests.
  • OLT: Added logging for GEM port FEC errors.
  • Wave-Fiber-ONU: Fixed HTTPS certificate generation.

Known issues

NanoG/Loco: Port forwarding rules and static DHCP leases are not provisioned.

]]> https://community.ui.com/releases/UFiber-4-10-2-4-10-2/d30bec26-b6fd-4143-8806-e6bfeb8d77b4 d30bec26-b6fd-4143-8806-e6bfeb8d77b4 Mon, 02 Feb 2026 16:51:04 GMT <![CDATA[UFiber 4.10.1]]> Overview

UISP Fiber version 4.10.1 firmware provides bug fixes and performance improvements.

Bugfixes

Re-enabling ONUs after OLT reboot

]]> https://community.ui.com/releases/UFiber-4-10-1-4-10-1/a47f700c-3b28-4ebe-840c-eeb4dcc29aa3 a47f700c-3b28-4ebe-840c-eeb4dcc29aa3 Mon, 10 Nov 2025 14:58:56 GMT <![CDATA[UFiber 4.10]]> Overview

UISP Fiber version 4.10 firmware provides router mode support for WaveFiber ONU, bug fixes, and performance improvements.

Improvements

Wave-ONU: Router mode support

All ONUs: Security improvements, HTTPS web server

OLT: Enhanced device compatibility

Bugfixes

Wave-ONU: Bugfixes e.g. MIB upload

Wave-ONU: Throughput fix

]]> https://community.ui.com/releases/UFiber-4-10-4-10/0a6cb8c7-523b-4e97-a7a5-8539c856345b 0a6cb8c7-523b-4e97-a7a5-8539c856345b Mon, 15 Sep 2025 10:22:57 GMT <![CDATA[UFiber 4.9.3]]> Overview

UISP Fiber 4.9.3 firmware provides bug fixes and stability improvements.

Bugfixes

* UF-OLT, UF-OLT4: Fixed rare issue in internal switch upgrade

* UF-WiFi6, UISP-Fiber-XG, UISP-Fiber-XGS: Fixed memory leak when client isolation was disabled.

]]> https://community.ui.com/releases/UFiber-4-9-3-4-9-3/9e9fd50d-8d66-4f48-af8c-e4c19d1e7706 9e9fd50d-8d66-4f48-af8c-e4c19d1e7706 Tue, 03 Jun 2025 13:01:18 GMT <![CDATA[UFiber 4.9.1]]> Overview

UISP Fiber firmware 4.9.1 includes support for WaveFiber ONU and includes stability fixes and improvements.

Improvements

  • Added support for WaveFiber ONU

Bugfixes

  • Fixed IPv6 memory leak
  • Fixed PON Drift handling leading to unexpected disconnects
]]> https://community.ui.com/releases/UFiber-4-9-1/a600598d-5b8f-4ce8-abbc-e86c4077da64 a600598d-5b8f-4ce8-abbc-e86c4077da64 Fri, 09 May 2025 13:03:16 GMT <![CDATA[UISP Fiber 4.9.0]]> Overview

UISP Fiber 4.9.0 firmware adds features and stability improvements.

Improvements

  • Enforcement of strong passwords
  • SSH is disabled in a factory default configuration
  • Static DHCP leases can be configured for ONUs in Router Mode
  • DHCP renew called after cable connected to MGMT port
  • Upgraded Debian to bookworm

Bugfixes

  •  Improved Logging
  •  udhcpd replaced with dnsmasq
  •  Fixed Opt82 relay on/off toggle
  • UF-WIFI6 start-up stability
  •  WebUI: Fixed special characters in notes and comments
  •  WebUI: Fixed invalid config causing ONU configuration not to show
  •  DNS: ONU receiving DNS on WAN now updates properly when switching WAN Method
  •  DNS: UF-Nanog: Now uses multiple DNS servers
  •  DNS: Added DNS proxy toggle
  •  Security: Wi-Fi Auth Flooding Vulnerabilities (CVE-2021-41788)
]]> https://community.ui.com/releases/UISP-Fiber-4-9-0-4-9-0/1aeeb4d6-73c8-4d00-862e-7e597c42659e 1aeeb4d6-73c8-4d00-862e-7e597c42659e Wed, 18 Dec 2024 16:07:00 GMT <![CDATA[UISP Fiber 4.8.0]]> Overview

UISP Fiber 4.8.0 firmware adds a MAC Address limiting feature and provides bug fixes and stability improvements.

Improvements

  • Firmware upgrade process improvements.
  • Insert DHCP Option 82 into ONU WAN Requests.
  • Removed ONU MAC address listed under connected devices. (Now only connected devices show without showing the ONU's MAC in the list.)
  • Introduced Mac Limiting Feature:
  • Static MAC Address Limiting with Allowed List or Deny List
  • Dynamic MAC Address Limiting: When “Limit learned addresses” is checked, an ONU in bridge mode will limit the number of connected devices based on the value set in "Count of addresses".

Bugfixes

  • Fixed ONU LAN port traffic counters.
  • Fixed a rare case of unexpected ONU reboot when certain non-offloaded traffic is passing.
  • Fixed a rare case of ONU provisioning failure.
  • Fixed UF-WIFI DHCP checksum error when in bridge using DHCP option 82.
  • Fixed UF-WIFI debug logging.
  • Fixed UF-WIFI Stability.
  • Fixed ONU reboot reason logging.
  • Fixed UF-WIFI6 Auto Channel Selection.
  • Fixed UF-NANO and UF-LOCO Router mode port forward failure after reboot.

Additional information

OLT firmware contains firmware for all supported ONUs. ONUs will be upgraded automatically after the OLT is upgraded.

We greatly appreciate any feedback on deployments and/or other UISP Fiber issues you may encounter on this release. Please contact support through your UI account and attach both the OLT and ONU support files downloaded through the OLT's web interface to report any issues.

]]> https://community.ui.com/releases/UISP-Fiber-4-8-0-4-8-0/50576469-198f-49e8-a2c5-6f1444c519c3 50576469-198f-49e8-a2c5-6f1444c519c3 Tue, 25 Jun 2024 13:38:34 GMT <![CDATA[UISP Fiber 4.7.0]]> Overview

UISP Fiber firmware 4.7.0 provides stability improvements and bug fixes.

Improvements

  • Increased debug data and reporting.
  • Improved XG/XGS distance calculation.
  • Updated Dropbear SSH version.
  • IPv6 Support for UF-LOCO and UF-NanoG when in router mode.
  • ONUs now block IPv6 RA when in bridge mode.

Bugfixes

  • Fixed ONU factory reset from OLT where hostname did not reset.
  • Fixed UF-Nano IPv6 bug causing crashes.
  • Fixed ONU Router Mode where DHCP Server gateway field trimmed long gateway addresses.
  • Fixed Ethernet link speed reporting error.
  • Fixed rare cases of duplicate DHCP addresses assigned to ONUs when many ONUs re-connect at the same time.

Known issues

  • [UF-WiFi] L2 loop between WiFi and LAN port can cause a device reboot.

Additional information

Major stability improvements for UF-WIFI and UF-WIFI6 were introduced in firmware 4.4.8 and higher.

  • The OLT firmware contains the firmware for all supported ONUs. ONUs will be upgraded automatically after the OLT is upgraded.

We greatly appreciate any feedback on deployments and/or other UISP Fiber issues you may encounter on this release. If so, please contact support through your UI account and attach both the OLT and ONU support files downloaded through the OLT's web interface .

  • OLT > System settings > System actions > Download support file
  • OLT > ONU list > select options on affected ONU > Download support file
]]> https://community.ui.com/releases/UISP-Fiber-4-7-0-4-7-0/4029d7b7-4afb-49dc-9714-3c8ed6b31345 4029d7b7-4afb-49dc-9714-3c8ed6b31345 Wed, 31 Jan 2024 13:22:44 GMT <![CDATA[UISP Fiber 4.6.1]]> Overview

UISP Fiber 4.6.1 resolves the issue where ONUs could provision periodically.

Improvements

  • Improved acquiring support files from ONUs.

Bugfixes

  • Resolved periodical provisioning of ONUs.

Known issues

  • [UF-WiFi] L2 loop between WiFi and LAN port can cause a device reboot.

Additional information

  • The OLT firmware contains the firmware for all supported ONUs.

We greatly appreciate any feedback on deployments and/or other UISP Fiber issues you may encounter on this release. If so, please contact support through your UI account and attach both the OLT and ONU support files downloaded through the OLT's web interface .

  • OLT > System settings > System actions > Download support file
  • OLT > ONU list > select options on affected ONU > Download support file
]]> https://community.ui.com/releases/UISP-Fiber-4-6-1/8282197d-a460-4bfc-8de9-495f36c171b1 8282197d-a460-4bfc-8de9-495f36c171b1 Thu, 26 Oct 2023 09:13:09 GMT <![CDATA[UISP Fiber 4.6.0]]> Overview

UISP Fiber 4.6.0 renames UFiber to UISP Fiber and adds support for Hairpin NAT and different native VLANs on the UF-WiFi6.

Improvements

  • ONU experience value is now decreased if signal is out of range.
  • [UF-WiFi/WiFi6/Nano/Loco] Added PPPoE MS-CHAPv2 support.
  • [UF-WiFi/WiFi6/Nano/Loco] Added Hairpin NAT support.
  • [UF-WiFi6] Added support for different native VLANs per port.
  • Random password is now generated for default ONU configurations upon first boot.
  • Renamed UFiber to UISP Fiber.
  • Port Forwarding now allows up to 32 rules.
  • [UISP-FIBER-OLT-XGS] Enabled management via SFP in the factory default configuration.
  • [UISP-FIBER-OLT-XGS] Removed LAG port speed change limitation.
  • [UISP-FIBER-OLT-XGS] Enabled STP on the MGMT port.
  • [UISP-FIBER-OLT-XGS] Added ubntSfp SNMP table.
  • [UISP-FIBER-OLT-XGS] Updated SFP port numbering.

Bugfixes

  • [UISP-FIBER-OLT-XGS] Fixed LED behavior on the MGMT port. LED is now no longer on without a link.

Known issues

  • [UF-WiFi] L2 loop between WiFi and LAN port can cause a device reboot.

Additional information

We greatly appreciate any feedback on deployments and/or other UISP Fiber issues you may encounter on this release. If so, please contact support through your UI account and attach both the OLT and ONU support files downloaded through the OLT's web interface .

  • OLT > System settings > System actions > Download support file
  • OLT > ONU list > select options on affected ONU > Download support file
]]> https://community.ui.com/releases/UISP-Fiber-4-6-0/912f90cb-ac94-49e8-96ac-5cab59298b3e 912f90cb-ac94-49e8-96ac-5cab59298b3e Wed, 04 Oct 2023 12:27:13 GMT <![CDATA[UFiber 4.5.3]]> Overview

UFiber 4.5.3 improves stability of the UF-OLT and IPv6 compatibility of some ONUs.

We greatly appreciate any feedback on deployments and/or other UFiber issues you may encounter on this release.

(Note: OLT firmware contains firmware for all supported ONUs: UF-NANO, UF-LOCO, UF-INSTANT, UF-WIFI, UF-WIFI6)

Improvements

  • [UF-WiFi6/UF-WIFI/UF-Instant/UISP-FIBER-XG] Added various IPv6 improvements.

Bugfixes

  • [UF-WiFi6] Resolved DHCP daemon crashing while the device is in PPPoE mode with IPv6 uplink

Known issues

  • [UF-WiFi] L2 loop between WiFi and LAN port can cause a device reboot.

Additional information

If you still encounter issues, please contact support through your UI account and attach both the OLT and ONU support files. Both support files can be obtained from the OLT's web interface under the System settings -> System actions -> [life buoy icon] and ONU list -> three dots on the line of the affected ONU -> Download support file.

]]> https://community.ui.com/releases/UFiber-4-5-3/f87b521c-1fb8-4b80-83e9-0fe405a6be76 f87b521c-1fb8-4b80-83e9-0fe405a6be76 Wed, 02 Aug 2023 12:16:23 GMT <![CDATA[UISP Fiber XGS 4.5.3]]> Overview

UISP Fiber XGS 4.5.3 is the first release for the UISP Fiber OLT XGS.

We greatly appreciate any feedback on deployments and/or other UISP Fiber issues you may encounter on this release.

(Note: OLT firmware contains firmware for all supported ONUs: UF-NANO, UF-LOCO, UF-INSTANT, UF-WIFI, UF-WIFI6, UISP-FIBER-XG, UISP-FIBER-XGS)

Improvements

  • [UISP-FIBER-OLT-XGS] Added SNMP support.
  • [UF-WiFi6/UF-WIFI/UF-Instant/UISP-FIBER-XG] Added various IPv6 improvements.

Bugfixes

  • [UF-WiFi6] Resolved DHCP daemon crashing while the device is in PPPoE mode with IPv6 uplink.

Known issues

If you still encounter issues, please contact support through your UI account and attach both the OLT and ONU support files. Both support files can be obtained from the OLT's WebUI under the System settings -> System actions -> [life buoy icon] and ONU list -> three dots on the line of the affected ONU -> Download support file.

]]> https://community.ui.com/releases/UISP-Fiber-XGS-4-5-3/d2822780-a90b-4748-9736-f86d347aa03c d2822780-a90b-4748-9736-f86d347aa03c Wed, 02 Aug 2023 12:16:19 GMT <![CDATA[UFiber 4.4.9]]> Overview

We are releasing UFiber 4.4.9 as the new release which fixes several rare issues with PPPoE and stability of very big deployments.

We greatly appreciate any feedback on deployments and/or other UFiber issues you may encounter on this release.

Improvements

  • [UF-Nanog/Loco]: Improved web server resource handling to make reconfigurations faster and more efficient.
  • [UF-WiFi6]: Improved logging, added wifi debug information to support file.


Bugfixes

  • [UF-OLT]: Fixed performance issue in large deployments (>800 ONUs).
  • [UF-OLT]: Updated openssl to resolve some reported CVEs (CVE-2023-0286, CVE-2022-4304, CVE-2022-4203, CVE-2023-0215, CVE-2022-4450, CVE-2023-0216 and CVE-2023-0217).
  • [UF-Nanog/Loco]: Fixed HW watchdog to prevent lockups.
  • [UF-Instant]: Fixed broadcast/multicast traffic in tagged networks.
  • [UF-Instant]: Fixed multicast loop when client isolation is disabled.
  • [UF-Instant]: Fixed multicast join to multiple groups.
  • [UF-WiFi]: Fixed rare PPPoE connectivity issue where the ONU in Router Mode failed to acquire an IP address after a (re)boot.


Known issues

  • [UF-WiFi]: L2 loop between WiFi and LAN port can cause a device reboot.


Additional information

If you still encounter issues, please contact support through your UI account and attach both the OLT and ONU support files. Both support files can be obtained from the OLT's WebUI under the System settings -> System actions -> [life buoy icon] and ONU list -> three dots on the line of the affected ONU -> Download support file.

]]> https://community.ui.com/releases/UFiber-4-4-9/57ee4276-e0d9-4f21-9a33-9c708eecc98e 57ee4276-e0d9-4f21-9a33-9c708eecc98e Tue, 21 Mar 2023 09:30:32 GMT <![CDATA[UFiber 4.4.8]]> Overview

We are releasing UFiber 4.4.8 as the new stable release. Over the last couple of testing releases, we have accumulated a number of improvements that significantly improve the stability and reliability of the whole UFiber product line, especially the UFiber WiFi (we also greatly improved the crash reporting on that device).

If you still encounter issues, please contact support through your UI account and attach both the OLT and ONU support files. Both support files can be obtained from the OLT's WebUI under the System settings -> System actions -> [life buoy icon] and ONU list -> three dots on the line of the affected ONU -> Download support file.

We greatly appreciate any feedback on deployments utilizing the UF-WIFI and/or other UFiber issues you may encounter on this release.

Bugfixes

  • UF-Instant: Fix for a situation when having a lot of devices on the same L2 network prevented ONU from generating support file properly.
  • UF-Nanog/UF-Loco: Fixed a potential boot failure.
  • UF-Nanog/Loco/Instant/WiFi/WiFi6: Add hardware revision to support file.
  • UF-Instant/WiFi/WiFi6: Improved logging.
  • UF-WiFi: Fixed bug in WiFi driver which under some condition (lots of WiFi clients connected with various link speeds) may have caused device crash and reboot.
  • UF-WiFi: Fixed bug in packet processing code which caused random reboots.
  • UF-WiFi/WiFi6: Webserver and SSH server were sometimes not started after boot.
  • UF-WiFi6: Memory usage improvements.
  • UF-WiFi6: Stability improvements.
  • UF-WiFi6: Resolved the issue when receiving IPv6 multicast join packets in bridge mode may cause random device reboots.
  • UF-OLT: Fixed Performance issue of device discovery daemon.
  • UF-OLT: Fixed CVE-2022-0778 in openssl.
  • UF-OLT: Fixed CVE-2018-25032 in zlib.
  • UF-OLT: Fixed inability to add new ONU using "Add ONU ..." link.
  • UF-OLT: Fixed ONU traffic statistics reporting which may be inaccurate for some time after reboot.
  • UF-OLT: Fixed inability to setup port forwarding rules in ONUs.

Known issues

  • UF-WiFi: L2 loop between WiFi and LAN port can cause a device reboot.

Additional information

  • Increased CPU load on UF-WIFI may be seen, this doesn't affect the performance of the device.
  • The changes added to this release affect setups where the ONUs are connected to the UFiber OLT. If a change affects third-party setups (using only the UF-Nano or UF-Loco), we will release a separate ONU release.
]]> https://community.ui.com/releases/UFiber-4-4-8/3773b6c8-ed78-4067-99f6-a14e0be31c24 3773b6c8-ed78-4067-99f6-a14e0be31c24 Tue, 31 Jan 2023 15:07:54 GMT <![CDATA[UFiber v4.4.2]]> Overview

This release contains support of UF-WiFi6.

Note: UISP upgrade to version 1.4.2+ is required to manage UF-Wifi and UF-Wifi6 properly.

Improvements

UF-WiFi6: Bridge mode support

UF-WiFi6: Stability improvements

UF-WiFi + UF-WiFi6: UPNP compatibility improvements

OLT WebUI: Fixed multiple onu configuration

Known issues

UF-OLT

  • Downgrade to fw v4.3.x is not supported. Please restore a previously made backup after a downgrade.


]]> https://community.ui.com/releases/UFiber-v4-4-2/927fbc07-d432-41a7-aa3d-bb6c6cf3d6d3 927fbc07-d432-41a7-aa3d-bb6c6cf3d6d3 Wed, 16 Mar 2022 09:09:16 GMT <![CDATA[UFiber v4.4.1]]> Overview

This release contains support of UF-WiFi6.

Note: UISP upgrade to version 1.4.2+ is required to manage UF-Wifi and UF-Wifi6 properly.

Bugfixes

- UF-WiFi: Wifi calling / IPsec connections had corrupted checksum

- UF-Nanog/loco: Added Port Forwarding rules were not saved to standalone ONU

Known issues

UF-OLT

  • Downgrade to fw v4.3.x is not supported. Please restore a previously made backup after a downgrade.

UF-WiFi6

  • Bridge mode is not supported yet.
]]> https://community.ui.com/releases/UFiber-v4-4-1/0130d593-5c87-4667-a2e7-9bf639b90ebb 0130d593-5c87-4667-a2e7-9bf639b90ebb Thu, 27 Jan 2022 13:02:01 GMT <![CDATA[UFiber 4.3.3]]> Improvements

- ONU name is initialized with MAC address instead of serial number

- ONU connected devices - added port number

- UF-WiFi: Updated WiFi driver

- UF-WiFi: Updated gpon driver

]]> https://community.ui.com/releases/UFiber-4-3-3/a8b8d3d5-afb4-444f-960a-1a11170bc847 a8b8d3d5-afb4-444f-960a-1a11170bc847 Mon, 26 Jul 2021 15:49:52 GMT <![CDATA[UFiber v4.3.0]]> Improvements

- OLT: added ONU LAN client info in router mode

- OLT: added ONU experience index and GPON log

Bugfixes

- UF-Instant, UF-WiFi: Fixed IGMP Snooping

]]> https://community.ui.com/releases/UFiber-v4-3-0/303b0e3d-0837-49de-a624-c522df41049a 303b0e3d-0837-49de-a624-c522df41049a Thu, 04 Feb 2021 14:05:13 GMT <![CDATA[UFiber v4.2.1]]> Overview

Please backup your current configuration before upgrading!

Bugfixes

- OLT stability issue (memory leak) fixed

- WebUI: improved performance

- UF-Nanog/loco: Disable DNS and DHCP servers after switch from router to bridge mode

- UF-WiFi: Stability improvements

- UF-Instant: Improved SFP link negotiation

]]> https://community.ui.com/releases/UFiber-v4-2-1/84c1b5e8-e911-4d2a-bfff-24d80e7f6de5 84c1b5e8-e911-4d2a-bfff-24d80e7f6de5 Tue, 16 Jun 2020 10:59:52 GMT