License problem when upgrading to OSX El Capitan: License Manager Error -9

Hi, I upgraded to OSX El Capitan and my Matlab 2012 Student stopped working. It was working with Yosemite. My hard disk was replaced by Apple 2 months ago but after restoring the backup it continued working but after the upgrade to El Capitan, any idea on how to fix it? it gives the error: License checkout failed. License Manager Error -9 The hostid of your computer (xxxxxxxxxxx) does not match the hostid of the license file (yyyyyyyyyyy).

Troubleshoot this issue by selecting the button below or visiting: http://www.mathworks.com/support/lme/R2012a/9

Diagnostic Information: Feature: SR_MATLAB License path: /Users/manuel/.matlab/R2012a_licenses:/Applications/MATLAB_R2012a_Student.app/licenses/license.dat:/Applications/MATLAB_R2012a_Student.app/licenses/*.lic Licensing error: -9,57.

Actually the problem solved itself. I just rebooted and the program started working. So right after the OS installation it does not work, but after a reboot it starts working again.

Answer 1

[Riya]

Hello Manuel Reinaldo Falagan,

I see that you are facing license related error while using MATLAB. 

Please note that, with MATLAB releases R2012a through R2013b on Mac OS X 10.8 to at least 10.10 (Mountain Lion, Mavericks, and Yosemite), your MathWorks Host ID points to en1, not en0. On Mac OS X 10.7 and earlier, the Host ID is still en0.

This issue only affects Mac models which have multiple network interfaces. Macs without a built in Ethernet port are not effected. This includes the MacBook Air and the retina MacBook Pro.

For instructions to resolve this error, please see the link below provided by MathWorks Support Team about error -9:

• For Mac OS R2012a https://www.mathworks.com/matlabcentral/answers/97313-when-manually-activating-r2012a-r2013b-on-macos-x-10-8-10-10-why-do-i-receive-an-error-9
• For polyspace https://www.mathworks.com/matlabcentral/answers/93587-why-do-i-receive-a-license-error-9-when-using-a-polyspace-client-locked-to-the-computer-s-hard-driv
• R2008a username case sensitivity https://www.mathworks.com/matlabcentral/answers/93146-why-do-i-receive-a-license-manager-error-9-in-matlab-r2008a-after-changing-network-connections-on-w
• Using old dongle https://www.mathworks.com/matlabcentral/answers/97510-why-do-i-receive-license-manager-error-9-when-i-run-matlab-6-0-r12-with-a-dongle
• Error 9,57 https://www.mathworks.com/matlabcentral/answers/99067-why-do-i-receive-license-manager-error-9

I hope it helps! 

Thanks,

Riya

[Walter Roberson]

Looks like someone has been making use of my https://www.mathworks.com/matlabcentral/answers/404028-license-problems-cheat-sheet?s_tid=srchtitle without citation...