After removing the trial license, your network or permanent license should take effect.
Follow these methods in order to diagnose and resolve the issue.
Firewalls or antivirus software are blocking communication between SAP2000 and the Sentinel RMS server.
if you manage a network installation. Note the hostname, port number, and Sentinel License Manager version you're using. sap2000 license not recognized error 18 fixed
To help narrow down the solution, tell me: Are you using a or a shared network license ? Knowing your SAP2000 version and Windows operating system will also help me provide more specific steps. Share public link
Go to C:\Program Files (x86)\Common Files\SafeNet Sentinel and delete the folder contents.
Place this file directly into the SAP2000 installation folder (e.g., C:\Program Files\Computers and Structures\SAP2000 25 Restart the License Service After removing the trial license, your network or
The resolution process involves a clean reinstallation of the Sentinel drivers:
Right-click the SAP2000 shortcut and select "Run as administrator." Some licensing operations require elevated privileges, especially when writing or accessing license files.
SAP2000 reads a text file that tells it where the license is. If this file is missing or points to the wrong location, Error 18 appears. if you manage a network installation
: Some users find that pressing F4 (or Fn + F4 on laptops) during the native image installation process can uninstall a faulty previous installation, allowing for a clean retry.
: If your license is tied to a USB hardware key (Sentinel HL dongle), the lservrc file alone won't suffice. The USB key must be physically inserted, and its drivers must be properly installed. You may need to move the USB key to a different USB port or reinstall its drivers.