Problems to activate the virtual CORE

I use ctrlX CORE to learn students how to program a PLC.
By one of the students installation of ctrlX WORKS went OK but when he wants to start a virtual CORE we get an error.

What we did is the actions in added documents.

We also looked if one of his Ethernet ports was on the same IP address.

He using Windows 11.

We are using ctrlX WORKS version 1.20.12. And I asked him if he could try it also with the newest version of ctrlX WORKS 2.6 , he did but with the same result!

Any ideas?

CtrlX CORE boost.pdf
40.79KB
In ctrlX Works problem with starting a virtual CORE.pdf
202.83KB
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