Cannot get "barrier" to work

Ubuntu
32

@01101111 and @Akito:

SUCCESS!!!

Well I´ll be blessed. It´s the firewall which is the culprit after all.
I wouldn´t have thought. After all this time of exploring and fiddling… :relaxed:

I did think of that in the beginning and switched my firewall off with the help of the GUI (both on the server and on the client) but it didn´t have any effect.
Now I did it with CLI:
sudo ufw disable. And suddenly it works!!! Perfect.

Thank you so much. :+1:

But now I have to figure out a respective rule so that my firewall can keep running.
I know it´s port 24800 which is used.

Thank you so much. :heart:

Greetings.
Rosika :smiley:

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