I may have solved the issue. How?
I wanted open the ports on my router but I noticed that I could get inside it through the normal gateway address "192.168.0.1".
I noticed also that this address was changed by typing ipconfig on a command shell. I realized that my router was fucked up, despite internet is working properly and I think that the cause was a firmware update made months ago.
Also, I have tried to downgrade the firmare, but I could not.
I have simply put an old router, then I set up an internal static ip in my laptop and opened the ports for Settlers on this router, I tried to host and now it seems working very well, ppl could join me.
)))))
Remains the fact that I do not know if the issue was provoked because the ports closed or because the mess in my router.
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