Getting FlexNet Licencing Error: -5 when using a trial of Parallel Computing Toolbox

Hi there,

we wanted to try out the Parallel Computing Toolbox and downloaded a trial version to test it with our current MATLAB 2017a (academic licence, network licence). After installing, the toolbox shows up (ver):

Parallel Computing Toolbox                            Version 6.10        (R2017a)

However, when trying to use it, following error occurs (e.g. when creating a feedforwardnet and trying to train it with 'useParallel' argument):

Cannot perform computations on a parallel pool.
Parallel Computing Toolbox license is not available.

What are we doing wrong here? Thank you

Alex

Answer 1

[Walter Roberson]

Error 5 is that it cannot find the product in the license file. So you downloaded the trial and installed it on your system but either no license file was updated with the trial, or else the update was to a license file that you are not configured to look at, or else the license server has not been signalled to reread the license file.