Different procedures are required for regular and automatic license servers. Both versions are provided here.
Enter the following in Terminal:
./lmutil lmdown -q -force
Enter the following in Terminal:
./lmgrd -c acad.lic -l debug.log
Enter the following in Terminal:
sudo /sbin/SystemStarter stop adsknlm
Enter the following in Terminal:
sudo /sbin/SystemStarter restart adsknlm