How to keep Host ID from changing on Linux

I am currently on a trial of matlab and my host ID changes upon completely random circumstances, I can have consequtive launches with no problem then suddenly it says my hwid is mismatched, happened once when I installed new desktop to get dark mode, then just randomly a few times. I am on Arch, what could be causing this? It's not like it changes every other launch either

> matlab
MATLAB is selecting SOFTWARE rendering.
License checkout failed.
License Manager Error -9
Host ID '125e69df2eff' in the license file does not match your computer's host ID: "1643c734f6fd f02f741d5011 f02f741d4fb4". 
To resolve this issue, reactivate your license.

Troubleshoot this issue by visiting: 
https://www.mathworks.com/support/lme/9

Diagnostic Information:
Feature: MATLAB 
License path: /home/ciel/.matlab/R2024b_licenses:/home/ciel/MATLAB/2024B/licenses/license.dat:/home/ciel/MATLAB/2024B/licenses/trial_12942131_R2024b.lic 
Licensing error: -9,57.
Unable to launch MVM server: License Error: Licensing shutdown
> ./MATLAB/2024B/bin/glnxa64/MathWorksProductAuthorizer
> matlab
MATLAB is selecting SOFTWARE rendering.
> matlab -nosoftwareopengl
License checkout failed.
License Manager Error -9
Host ID '1643c734f6fd' in the license file does not match your computer's host ID: "2652814a85c3 f02f741d5011 f02f741d4fb4". 
To resolve this issue, reactivate your license.

Troubleshoot this issue by visiting: 
https://www.mathworks.com/support/lme/9

Diagnostic Information:
Feature: MATLAB 
License path: /home/ciel/.matlab/R2024b_licenses:/home/ciel/MATLAB/2024B/licenses/license.dat:/home/ciel/MATLAB/2024B/licenses/trial_12942131_R2024b.lic 
Licensing error: -9,57.
Unable to launch MVM server: License Error: Licensing shutdown
> ./MATLAB/2024B/bin/glnxa64/MathWorksProductAuthorizer
> matlab -nosoftwareopengl
> matlab

This is all within one single terminal session, and a few more has happened before this, what do I do?

[Star Strider]

Do as it suggests and contact Tech Support.

It even gives you the URL:

Troubleshoot this issue by visiting:

https://www.mathworks.com/support/lme/9

.

[Walter Roberson]

https://www.howtogeek.com/880124/how-to-permanently-change-your-mac-address-on-linux/

[Ciel]

Thank you for your response, as you can see in the terminal logs, I have already reactivated my license multiple times(and several times outside of the captured logs), I should also note that it was extra difficult as the command for reactivating changed in the past 10 years so I had to separately find the executable.

But it’s not a one time issue, it’s recurring, having to reactivate every single time I want to use the software is a problem I would like to fix. The thread mentioned having to have your username be root is also no longer applicable as it works with regular user, just for a short period only for some reason on my device. It mentions “configure your device to have static hostid” but provides no information. I have not done anything to actively change my device’s identifiers and I have been fine with every other hardware id system before like Mathematica and they have been working just fine, so either Matlab is sampling something it shouldn’t, or I have something that’s changing on my PC that all other hwid systems don’t look at, either case I dont think the support thread covers it.

[Ciel]

Hello the HowToGeek article appears to be how one would go about spoofing/changing their hwid, I have never done that before and all mac addresses should be as the hardware says, which I have reasons to believe did not change during the 2 minutes in between my command runs multiple times

[Walter Roberson]

You have Mac Address Randomization enabled.

See https://wiki.archlinux.org/title/NetworkManager#Configuring_MAC_address_randomization for information on disabling it if you happen to be using Network Manager. (Different linux versions handle networks in different ways.)

[Ciel]

Late reply because I gave up on fixing the issue for a while. It was not MAC randomization. I run a single wired ethernet connection and do not randomize my mac address. And I followed the guide anyway and it still doesnn't fix the problem.