Autodesk Network License Not Available Error 85440 Top May 2026

Ensure the client machine’s date/time/timezone matches the license server (use NTP). A client clock set to a future date can confuse borrow end times.

If the quick fixes fail, work through these solutions in order.

For CAD managers and design professionals, few things bring productivity to a screeching halt like a license error. Among the most cryptic and frustrating is Autodesk Error 85440: “Network License Not Available.” autodesk network license not available error 85440 top

This error typically appears when a user launches an Autodesk product (like AutoCAD, Revit, or 3ds Max) configured to borrow a license from a network license server. Instead of accessing the software, they are met with a denial. Unlike simpler errors (e.g., “License checkout timed out”), Error 85440 points to a very specific problem: The license exists, but the server refuses to release it to the client.

Error 85440 often appears in high-latency environments (WAN, satellite offices). Extend the heartbeat tolerance. Explanation: This tells the client to wait up

On each client workstation:

Explanation: This tells the client to wait up to 1 hour for a heartbeat instead of the default 10 minutes. “License checkout timed out”)

Automatically diagnose and fix the root causes of Error 85440 when an Autodesk product (AutoCAD, Revit, Maya, 3ds Max, etc.) fails to check out a network license.