Nothing happends. It will not download. I have disabled the firewall, defender and other that may block the download. Nothing!
In Help it says that I shall try to change port, but in this new version you can`t do that in settings/connection.

So what to do?

Can you share a screenshot?

Windows is dead.  Try Ubuntu Linux.  You're gunna be happy.

it works fine for me on windows, I think some ISP providers block p2p especially metered connections like 4g.

2.81 is on microsofts Pua list try older version like 2.77