The Autodesk error code -8.544.0 (often appearing as part of a "Network License Not Available" message) typically indicates that the software is unable to communicate with the license server or find a valid seat for the specific user. Common Causes
Incorrect License Type: The software may be set to "Network" while the user is only assigned a "Sign In" (Single-User) license in the Autodesk Account.
Options File Restrictions: A server-side adskflex.opt file may be using EXCLUDE or INCLUDE commands that prevent your user or computer from accessing the license.
Server Incompatibility: The server might be running an outdated version of the Network License Manager (NLM/LMTOOLS) that is incompatible with the client's version of the software.
Registry Errors: An invalid value in the Windows Registry for the license file path. Recommended Fixes autodesk network license not available error 85440 link
Reset the License Type: Use the Autodesk Licensing Support Tool to reset the license mode. Launch the tool, select your product, and ensure the license method matches what is assigned in your account (e.g., "User" for Sign-In or "Network" for Multi-User).
Verify Server Connection: Ensure the client machine can "ping" the license server. Check that firewall ports 2080 and 27000-27009 are open on both the server and client.
Update LMTOOLS: If you are using 2020 or newer software, the license server should be running at least NLM version 11.18.
Clear Registry Path: Delete the following registry value to force the software to ask for the server name again: The Autodesk error code -8
HKEY_LOCAL_MACHINE\SOFTWARE\FLEXlm License Manager\ADSKFLEX_LICENSE_FILE.
Check Options File: Ask your IT administrator to verify if your username is restricted in the server's adskflex.opt file.
Do you have administrator access to both the local machine and the license server to perform these updates? 8" "Error [-8.544.0]" when launching Autodesk software
Run as Administrator in Command Prompt:
cd "C:\Program Files (x86)\Common Files\Autodesk Shared\AdskLicensing\Current\helper"
AdskLicensingInstTool.exe -uninstall
AdskLicensingInstTool.exe -install
Then restart your Autodesk product.
FlexNet uses two ports:
On the CLIENT machine, outbound traffic must be allowed. On the SERVER machine, inbound traffic must be allowed.
Client-side fix (Windows Defender Firewall): Then restart your Autodesk product
wf.msc → Outbound Rules → New Rule.2080, 27000-27009Server-side fix: Ensure the same ports are open Inbound on the license server.