How to overcome too many authentication failures error?

Question

linux

Good evening, such a situation arose, when trying to connect to the server via sftp, an error began to fall out

too many authentication failures username

At the same time, the connection through putty passes without problems, I tried to solve the problem using this guide https://superuser.com/questions/187779/too-many-au... does not help, what should I do?
I’ll also add that the error is reproduced only on one computer (Windows), and I also tried the guide https://gist.github.com/brasey/e5940d56b32452688e1e It didn’t help either