Autodesk Network License Not Available Error 85440 [upd] 〈4K · 480p〉
Autodesk Network License Error 85440: The Complete Troubleshooting Guide
Introduction: The Frustration of Error 85440
Imagine this: It is Monday morning. Your team of 30 designers is ready to start a high-stakes project. They launch AutoCAD, Revit, or 3ds Max. Instead of the familiar splash screen, they are met with a chilling dialog box: “Network License Not Available. Error 85440.”
- Ensure outbound traffic on TCP 2080 and 27000-27009 is allowed.
- If using third-party AV (Kaspersky, Bitdefender), add an exception for
adskflex.exeandlmgrd.exe.
Communication between the client and server must be unobstructed: autodesk network license not available error 85440
Autodesk Network License Error 85440: Causes & Fixes
What is Error 85440?
Error code 85440 appears when an Autodesk product (e.g., AutoCAD, Revit, Inventor) cannot check out a network license from a license server. The full message typically reads: Ensure outbound traffic on TCP 2080 and 27000-27009
- The error appears immediately upon launch (no timeout delay).
- It affects all users, not just one.
- Temporarily disabling the Windows firewall resolves the issue.
If you have a Single-User license, you must reset the license type. Use the Autodesk Licensing Support Tool to switch the product to "User" or "Sign In" mode. 2. Check the Network License Manager (Server Side) Communication between the client and server must be
- Ensure the license server software is running and properly configured.
- Check the license server logs for any errors or issues.