MathWorks Licensing Error 84 is usually the result of a missing or invalid options file, which is required for Network Named User license.
NOTE: You cannot INCLUDE more users than you have seats for a particular product, otherwise this error will be shown. The amount of seats can be found by checking the "USER_BASED=" value within the INCREMENT lines of your license.dat.
Make sure you have an options file, by default the options file is called MLM.opt, and that the path to the options file is included in the DAEMON line of your license.dat.
The license.dat file on the server machine is located in:
$MATLABROOT/etc ($MATLAB\flexlm for releases prior to R2010b on Windows)
(where $MATLAB is the MATLAB installation directory)
The following are examples of the DAEMON line for a license that requires an options file:
Windows:
DAEMON MLM "C:\Program Files\MATLAB\R2010b\etc\win32\mlm.exe" options="C:\Program Files\MATLAB\R2010b\etc\win32\MLM.opt"
UNIX/Linux/Mac:
DAEMON MLM /usr/matlab7/etc/MLM options=/usr/matlab71/etc/MLM.opt
(NOTE: prior to R2011a, the DAEMON line on Linux/Mac was "DAEMON MLM /usr/matlab7/etc/lm_matlab")
If you are performing a Network Named User (NNU) installation and you are missing an options file or if you would like information on how to create an options file for Windows or UNIX/Linux Network Named User, please see the link below:
NOTE: Once you have made changes to your license file or MLM.opt, be sure to restart the network license manager for these changes to take effect. For more information on how to restart the license manager, see the Related Solution linked below.
How do I start or stop the Network License Manager?
