Fixing common licensing errors

We have the following guidelines for fixing these common Lumerical licensing errors.

• This is either a network/connectivity issue or a firewall/security restrictions issue. 
• No request for license checkout can be seen on the Ansys license manager log files.
• The traffic or request for a license checkout from the local computer did not reach the license server. 
• The local computer running Lumerical is not able to connect or communicate with the license server machine on TCP port 1055 or 1056.

Try to resolve by:

1. If accessing from a different computer, ensure that the license configuration is set to the correct license server and port (check for typos). Consult with IT or license server administrator for this information and if your machine can connect with the license server.
2. On firewalled/secured networks, configure the license file with static ports. Open these ports for access to the license server. 
3. When using a proxy server, unset the 'http_proxy' environment variable before running Lumerical.
4. Edit the license configuration, 'License.ini' file to the correct 'domain' value for your license. Where the domain value is either '0' for the Ansys Enterprise license or '2' for the Ansys Standard (Business/Academic) license. See this page for details. 

Floating error: -21

Node-locked / Floating error: -21 License file does not support this version. 

• See FlexNet licensing error: -25. 

FlexNet licensing error: -25

FlexNet licensing error: -25 License server system does not support the version of this feature

1. Your license is not compatible with this version of Lumerical. This typically means you have a paid-up license without active TECS.
   • The problem can be resolved by renewing your TECS.
   • The other option is to install an older version of Lumerical that was released while you did have active TECS.
2. This error can also occur for customers using the legacy Lumerical License Manager.
   • Please contact your account manager to switch your license to the Ansys License Manager.
   • The other option is to install an older version, i.e. Lumerical 2021 R2.5 or older.

The license manager is down or there is no access to TCP port 1055 on the license server from the client computer.

Floating license error: -97 

Floating license error: -97 The desired vendor daemon is down

This indicates that the VENDOR daemon is down or there is no access on TCP port 1056 on the license server from the client computer. Accessing the license manager that is running a different VENDOR daemon. 

To resolve:

• Make sure that the license manager is up and running. Try restarting the license manager.
• Configure your license server with static ports and ensure that the ports used by the license manager are open to allow access to the license server.
• Configure Lumerical to obtain the license from the correct license server and port. Check for typos or consult with IT for this information, i.e. use IP instead of hostname, the port was changed, VPN access to the license server, etc.