Why does Putty give an error when connecting from a local machine?

Question

Computer networks

The question may have been repeated more than once, but I'm trying it for the first time, and at the same time the information may be refreshed here!
In general, I connect to splash44.beget.tech , enter my login and password. And this is what gives me prntscr.com/icbbh4
I have Windows 7 x 64, I tried Putty 32 and 64, the same thing. Pro tell me what's the matter? )

Answer 1

You are not typing your username or password correctly.

Answer 2

with 99.9% probability incorrect username-password

Answer 3

putty has logging.
write down the connection log and figure out where and why the error is.

Answer 4

Most likely, fail2ban is running on the server and when you enter the wrong password, it breaks the connection