This issue may occur if there is a port conflict or you are using old License Manager version with a newer license file.
The license manager (lmgrd) will start and run on the port number at the end of the SERVER line. This error message may occur if another program is trying to use that port, creating a port conflict. To resolve the issue, you can change this to an available port by editing the SERVER line in the license.dat file.
NOTE: If this number is changed in the SERVER line in the license.dat file on the license server, the network.lic file for all MATLAB installations must also be updated.
Each new MATLAB version comes shipped with a new version of the network license manager. If you are running an older version of the license manager, but have continued to update your license file, you may see this issue. In this case, try installing the new license manager software.
