Matlab R2023a Linux License Issue

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Anil GURSES
Anil GURSES 2023-9-11
评论： Walter Roberson 2023-9-11
Hi all,
I'm having trouble with my Matlab licensing. I'm using Fedora 38 Linux. I see the error below when I try to execute matlab,
$ matlab
License checkout failed.
License Manager Error -9
This error may occur when:
-The hostid of this computer does not match the hostid in the license file.
-A Designated Computer installation is in use by another user.
If no other user is currently running this program, you may need to activate.
I know that Matlab activation obtains host id from network interfaces. The problem with this approach is, computer might have more than one network interface. Also, most laptops have only usb-c as ports which allows to connect external ethernet ports. This might seem unrelated but it's not since I use different ethernet adapters (docks) between my home and work setup. I have to activate matlab over and over again whenever I change my ethernet interface. Is there way to avoid this?
Also, Matlab activation should prefer wifi interface if possible since it's the only interface doesn't change. I believe this will solve the licensing issue on usb-c based laptops.
Thanks,
A.
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Anil GURSES
Anil GURSES 2023-9-11
Basically, you are suggesting me to change my wifi interface name to eth0. I don't think this is a good solution as it might cause other problems (conflicts, etc.).
Walter Roberson
Walter Roberson 2023-9-11
My understanding is that these days, when you active MATLAB on Linux, that it records the MAC addresses of all interfaces it finds at the time, and that using udev can help pin down naming in a way that (somehow) makes the situation easier.
But I suggest you contact Mathworks for free Installation and Licensing support, as I have not used Linux since before udev existed.

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