Nlm11.18.0.0-ipv4-ipv6-win64.msi Guide
Before you run the installer, keep these best practices in mind: Backup Your Files: Always save a copy of your current license file ( ) and your debug log before starting an update. Uninstall the Old Version: It is standard procedure to go to Control Panel > Programs and Features
For CAD managers and IT administrators, keeping license servers running smoothly is the backbone of a productive office. If you've encountered the file nlm11.18.0.0-ipv4-ipv6-win64.msi , you are looking at a key update for the Autodesk Network License Manager (NLM) nlm11.18.0.0-ipv4-ipv6-win64.msi
This requirement is driven by compatibility. Newer Autodesk products (especially 2024 versions) include a Desktop Licensing Service that simply will not obtain a license from an NLM running an older version. A mismatch between a client’s licensing service and an older license server version results in a Network License Not Available error (often [0.0.0] ), preventing software activation. Version 11.18.0.0 is the baseline for ensuring compatibility with modern Autodesk tools. Older Autodesk products, however, will continue to work if pointed to an NLM 11.18 server. Before you run the installer, keep these best
| Requirement | Specification | | :--- | :--- | | | Windows Server 2012 R2, 2016, 2019, 2022 or Windows 10/11 (64-bit) | | RAM | Minimum 4 GB (8 GB+ recommended for high-traffic networks) | | Disk Space | 500 MB for the application plus additional space for logs | | Network | Static IPv4 or IPv6 address; stable connection to all client subnets | | Firewall Ports | TCP ports 1055 (lmgrd) and 1056 (vendor daemon) – must be open inbound | | Dependencies | Visual C++ Redistributables for Visual Studio 2015-2022 (x64) | Newer Autodesk products (especially 2024 versions) include a
The specific version of the FlexNet Publisher licensing software, mandated for modern Autodesk licensing.