Troubleshooting (MATLAB Installation Guide for Unix) MATLAB Installation Guide for Unix     Checking the License Manager Daemons The license manager must be running before you can start MATLAB. You can determine whether the license daemons are operating by using the lmstat command on the license server (usually the file server). cd $MATLAB/etc lmstat -a On computers running System V UNIX, enter ps -ef | grep lm Check the output of these commands to determine if both the license manager daemon (lm_TMW12.ld) and the vendor daemon (MLM) are running. Only one version of each process should be running. Remove all duplicate daemons manually. To stop processes, you must be logged in as superuser; then execute the command kill pid_of_daemon where pid_of_daemon is the process ID of the daemon. If either the license manager or vendor daemon is not running, restart the daemons by running lmstart, located in the $MATLAB/etc directory.  Common License Manager Problems Viewing the License Manager Log File