Locate the file named and rename it to lservrc.old (this acts as a backup).
: Ensure the client computer and the license server are on the same network segment and can "see" each other. Temporarily disable the Windows Firewall and any third-party antivirus software to check if they are blocking the connection. If the software works with the firewall off, you will need to add an exception to your firewall for the SAP2000 application.
Note down the displayed in the pop-up command window. Compare this code with the code tied to your license file.
Install the new manager and run the to reactivate your original activation keys. 2. Verify and Match Locking Codes sap2000 license not recognized error 18 extra quality
Often, the easiest fix is allowing the built-in utility to repair the license link.
Open the Windows Control Panel and .
If you are a structural engineer firing up CSI Software’s SAP2000, few things are as frustrating as the dreaded error, specifically Error 18 . Locate the file named and rename it to lservrc
For further troubleshooting, visit the CSI Knowledge Base or contact their support if your license file appears corrupted.
Windows, by default, turns off USB ports to save power. This resets the dongle’s handshake mid-session.
However, the root cause can vary significantly depending on your licensing model: If the software works with the firewall off,
Among the most dreaded and cryptic messages is the . This error typically appears immediately upon launching the software, preventing the GUI from loading. For users searching for a solution tagged with "Extra Quality" , you have likely encountered a specific cracked version of the software distributed by warez groups.
The lservrc file in the SAP2000 installation directory is damaged or missing.