Trados 2022 crashes on startup

I have Trados 2022 running on my home laptop. I have hosted one of our network seats on the laptop and want to use Trados on the same laptop. Yesterday that all worked without any problems.

Then today: the ip address of my laptop is changed and so I have to reactivate Trados by entering my new IP address. That fails by any means.

Trados crashes every time I want to click on the window to modify the server licence. Without any error message.

I have already tried reinstalling Trados, repairing, laptop reboot, renaming xml's in the roaming folder.

Nothing works and Trados keeps chrashing. What can I do?

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