Matlab Error License Manager Error -4

I am currently attempting to create a digital equalizer utilizing matlab. Everything was going well until I attempted to perform the FIR filtration of my signal. I am currently working remotely via my University which has full access to all toolboxes / aspects of Matlab. I was wonder if this error is something on my end or how to go about fixing this error:

>> filter1=fir1(N,Wn1);

License checkout failed. License Manager Error -4 Maximum number of users for Signal_Toolbox reached. Try again later. To see a list of current users use the lmstat utility or contact your License Administrator.

Troubleshoot this issue by visiting: http://www.mathworks.com/support/lme/R2012a/4

Diagnostic Information: Feature: Signal_Toolbox License path: Path exists, deleted for privacy sake. Licensing error: -4,132.

Answer 1

[Jason Ross]

If you use the lmstat command, it will contact the license server and you can see how many licenses are in use for signal_toolbox. Sounds like all of the licenses are in use -- lmstat will tell you how many copies you have and how many are in use -- and if memory serves, by who.

You'll likely need to contact the staff who manage the license server.