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Changing default port of Simulation Server
June 15, 2026
10:07, EEST
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rocket science
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Hi,

I tried to change the port (in the endpoints tab) from 53530 to 4999.

After click on Apply button, the simulation server restart with port 4999

But when I close the simulation sever and restart it again it is back to port 53530

Is there any way to change the port permanently to 4999?

Thank you!

June 15, 2026
10:33, EEST
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Matti Siponen
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Hello,

I’m unable to reproduce this error using the latest version of Simulation Server, which is version 2016.1.2.

When you close Simulation Server after applying the change to the port using the Apply button, you should be prompted to save changes to your project and in this case the change is the new port (and any other changes you might have made to the configuration). If you choose to save the changes, Simulation Server should be using the new port when it is started for the next time.

Please, let us know if you have a different sequence of making changes to Simulation Server that causes persisting the changed port to fail.

June 15, 2026
13:23, EEST
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rocket science
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Hi,

I’ve been using 2016.1.2 (Free Edition)

I think this here ‘… you should be prompted to save changes to your project…’ was the clue

I did not use any specific project. I just used the simulation server with the default configuration (the case where it loads from the default.simconf).
In that case it did not ask to save after Apply & Close.

I’ve now used ‘File//Save as’ to save to a ‘project.uasim’ and then it loads correctly with the new assigned port.

Thank you!

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