Your annual or multi-year license term has physically ended.
CATIA looks for a file called DSLicSrv.txt located in the hidden folder C:\ProgramData\DassaultSystemes\Licenses . Ensure this file contains the correct server name and port (usually ServerName:4085 ). The Expiration Date Of Your License Has Arrived Catia
Ensure ports 4084 and 4085 are open on your local machine and the server. Step 3: Resolving Hardware or "Target ID" Changes Your annual or multi-year license term has physically ended
Before assuming you need to buy a new license, verify what CATIA sees: Ensure ports 4084 and 4085 are open on
Licenses are often "node-locked" to a specific machine's unique ID. If you have recently upgraded your PC or are using a docking station (like a Thunderbolt dock), your Target ID may have shifted.
Your computer cannot "talk" to the Dassault Systèmes License Server (DSLS) due to network issues or firewall blocks. Step 1: Check Your License Status
Use the Managed DSLS Eligibility tool from Dassault Systèmes to check if your workstation can reach the license service.