Release notes for TPN MMU

v1.3.1b11
Release date: 2026-04-17
New feature:
  • Enhanced system stability across multiple components, including network configuration, serial port handling, and communication with UCX devices
  • Better handling of video streams from devices outside of the active configuration, preventing streams from becoming unresponsive
  • Improved reliability of device discovery to prevent potential freeze or “stuck” states
  • This release focuses on improving overall system stability and resolving issues that could impact reliable operation in certain environments where the key Improvements:
  • Bugfix:
  • FIXED: RS-232 Injection Communication Loss After Network Change - After modifying the network configuration (e.g., switching to static IP) on the TPN-MMU, RS-232 injection over TCP communication stops working.
  • FIXED: FastSwitchCrop and FastSwitchStretch HDCP Output Mode Error - In FastSwitchCrop and FastSwitchStretch video processing modes, the HDCP Output Mode dropdown menu appears; however, changing its value results in an error. - Workaround: If changing the HDCP Output Mode isrequired, please use FastSwitch mode.
  • Known issue:
  • Management Interface Static IP Configuration When the management interface has no IP address assigned (e.g., no cable connected and DHCP enabled by default), users cannot successfully configure a static IP address via the TPNMMU web interface. Workaround: No workaround currently
  • Remove multiple devices from the configuration group issue: Removing multiple devices from the configururation may cause services restart. After the restart the devices that are not in configuration will disappear from the Disocvery page. Workaround: Wait 10 seconds, then trigger the Discovery by pushing the “Discover” button.
  • Device Discovery Reset After Clone file download After downloading a clone file (which triggers a system restart), the Discovery page does not display devices that are not part of the configuration. Additionally, some device details (MAC and IP addresses) appear as `N/A`. Workaroud: New discovery should be triggered by “Discover” button
  • v1.3.0b6
    Release date: 2026-02-18
    New feature:
  • TPN-MMU-X100-20 Initial Release v1.3.0
  • Blue River Integration - Blue River server accessible through MMU via LW3 API
  • Video configuration: HDCP management - EDID management - Scaling settings
  • Automatic device discovery of the Lightware TPN devices (UCX-TPN, HDMI-TPN, HDMI-OPTN product families)
  • Network Management feature: All devices and interfaces - IP address assignment - IP conflict and subnet consistency monitoring - Exportable network device list
  • Media Control: Video switching - Audio follows video - USB follows video - USB-HID follows video
  • Device Management - Alias assignment (Device naming) - Add/remove devices to/from configuration - Device restart and factory reset - RS232 configuration - RS232 command injection
  • Known issue:
  • RS-232 Injection Communication Loss After Network Change - After modifying the network configuration (e.g., switching to static IP) on the TPN-MMU, RS-232 injection over TCP communication stops working. - Workaround: Disable the related TCP ports before performing network configuration changes.
  • Session Expiration Handling - When the session management timeout expires, the application does not automatically redirect the user to the login page. Instead, the user becomes blocked. Workaround: Manually refresh the page to be redirected to the login screen.
  • FastSwitchCrop and FastSwitchStretch HDCP Output Mode Error - In FastSwitchCrop and FastSwitchStretch video processing modes, the HDCP Output Mode dropdown menu appears; however, changing its value results in an error. - Workaround: If changing the HDCP Output Mode is required, please use FastSwitch mode.
  • EDID Validity Status on UCX-TPN Transmitters - The current EDID validity status is always displayed as “Invalid” when using UCX-TPN series transmitters. Please note that the default UCX EDID is a special EDID implementation and functions properly despite the displayed invalid status. This is a display issue only and does not affect normal operation. No functional impact on video transmission is expected.
  • NTP Issue with Multiple Ethernet Connections - NTP (Network Time Protocol) does not function properly when both Ethernet connections (AV LAN (PoE) and Control LAN) are active simultaneously. - Workaround: Set the date and time manually.
  • TPX Devices Appearing in Crosspoint View - TPX devices are discoverable, configurable, and appear in the crosspoint view of the MMU. While this may be useful for device configuration purposes, TPX devices are not intended to be used in crosspoint switching operations and their presence in the crosspoint view may cause confusion. - Workaround: Do not add TPX devices to the active configuration if crosspoint switching is required.
  • Alias Disappearing After Multiple Discoveries - In the built-in web interface, after performing multiple discovery actions, the Alias name of the endpoint device may disappear from the crosspoint table. - Workaround: Restarting the MMU restores the alias name.
  • Safari 26 Compatibility Issue (Safari Bug) - The MMU’s built-in web interface may encounter errors when accessed using Safari version 26. This issue is related to a known Apple Safari 26 browser bug. - Workaround: Please use an alternative web browser.
  • IP Conflict Handling - In case of an IP conflict, devices may become unresponsive and the conflict may not be automatically resolved. - Workaround: Switch between static IP and DHCP settings manually to restore operation.
  • v1.0.0b3
    Release date: 2025-12-17
    New feature:
  • The Blue River server is accessible through the MMU by LW3 API. - Discovery: Finding and mapping LWR / SDVoE / SDVoE Icron devices - Device Settings: Alias assignment, adding/removing devices to/from configuration, restarting/factory resetting devices, RS232 settings / RS232 command injection, SDVoE-related settings including HDCP, EDID, and Scaling - Network Settings: Default network separation, network page showing all devices and their interfaces, IP assignment, IP conflict/subnet consistency monitoring, exportable network list (Alias – IP – MAC – Hostname) - Video switching, Follow Audio and USB-USB-HID will follow the video - Default password for TPN-MMU - LARA