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N4321D Audio Transceiver Firmware

Written by Will Fraser

Updated at February 13th, 2026

Table of Contents

Brands: Models: Downloads: Information: Early Access Firmware Disclaimer: Prerequisites: Revision History:

Brands:

  • AMX

Models:

Product Name:

  • N-Series Audio Transceiver w/ Dante

SKU / FG #:

  • AMX-N43T001      (NMX-ATC-N4321D)
  • AMX-N43T001C      (NMX-ATC-N4321D-C)

Downloads:

Version: v1.6.3
Release Date: 11-04-2025
Download Link:

N4321D_Update_11-04-2025_v1.6.3.zip


Information:

 

Early Access Firmware Disclaimer:

Early Access software has not been fully tested and has only been checked for the issues it addresses. Some features may be incomplete, subject to change, or may not function as intended. You might experience unexpected errors, limited functionality, or disruptions, and the software's stability may vary. We encourage you to send feedback through our Technical Support team. While we appreciate and welcome your input, we make no guarantees about implementing specific changes. Please also note that support for early access software is limited, and response times for fixes will vary. By using this Early Access Software feature, you acknowledge that it is provided ‘as-is’ and agree to assume the risks associated with pre-release software.

 

 

  • Included is a folder called "Web". The folder contains the firmware needed to update the MWC function using the webpage address "http://<IP>/fwup.html" and upload the correct .bin file for the model. 

Prerequisites:

** If needed or issues are encountered updating with N-Able, update the device with the desired version of firmware from the Web folder at the 
 link http://<device_ip>\fwup.html by uploading the .bin file to the MWC firmware from the Web folder.

N-Able PC:
The minimum version of N-Able must be 5.1.6,
https://www.amx.com/en-US/product_families/amx-n-able-control-software

For questions, please refer to the user manual:
https://www.amx.com/en-US/site_elements/amx-manuals-instruction-manual-amx-n4321d-aoip-transceivers


Revision History:

Version 11/04/2025 (v1.6.3)

  • Fixed intermittent audio loss after 30 days
  • Fixed an issue with setting static IPv6 addresses
  • Fixed HControl trasnmit stream number issue
  • Stability Enhancements

Version 7/17/2025 (v1.6.1)

  • Fixed an issue with SVSI audio and different sample rates
  • Stability Enhancements

Version 11/13/2024 (v1.5.9)

  • Fixed an issue with IPv6 Address
  • Stability Enhancements

Version 10/30/2024 (v1.5.8)

  • Fixed an issue with BPDU advertisements
  • Fixed an issue when a user rapidly toggles the test tone, causing audio loss
  • Enhanced HControl
  • Stability Enhancements

Version 9/26/2024 (v1.5.4)

  • Enhanced HControl
  • Enhanced VLAN Support
  • Enhanced N-Act
  • Stability Enhancements

Version 8/8/2024 (v1.4.3)

  • Added HControl
  • Stability Enhancements

Version 7/10/2024 (v1.3.8)

  • Enhanced LLDP and 802.1x
  • Stability Enhancements
  • Security Enhancements

Version 6/27/2024 (v1.3.6)

  • Added Support for HControl
  • Added VLAN Support
  • Added SNMP
  • Enhanced N-Act
  • Stability Enhancements

Version 1/31/2024 (v1.1.4)

  • Stability Enhancements
  • Security Enhancements

Version 1/9/2024 (v1.1.2)

  • Added Support for N-Act
  • Added Support for Low Power mode
  • Added Support for multicast address override
  • Stability Enhancements
  • Security Enhancements

Version 12/1/2023 (v1.0.9)

  • Corrected issue with Test Tone
  • Stability Enhancements

Version 11/15/2023 (v1.0.8)

  • Improved the Mic/Line input level
  • Stability Enhancements
  • Security Enhancements

Version 10/20/2023 (v1.0.6)

  • Stability Enhancements
  • Security Enhancements

Version 10/04/2023 (v1.0.5)

  • Stability Enhancements

Version 06/03/2023 (v1.0.2)

  • Initial Release

 

Related Videos

update upgrade

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Table of Contents

Brands: Models: Downloads: Information: Early Access Firmware Disclaimer: Prerequisites: Revision History:

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