Unable to download file >1MB; upload works ever

Hello, everyone,
I cannot download files larger than one mega because the session goes into timeout, the server does not respond and my session is closed. When I try to upload a file of any size I have no problem.

Protocol: SCP
Target: unix server

I have already set 'Optimise buffer size', it does not work even if it is disabled.

I did the same test with SFTP, I have the same behaviour.

I attach logs.

Please post log with "Optimise buffer size" off.

Can you download the file using any other client?

Thanks for fast response. I cannot try with other client.

I'm attaching log requested.

Complete log please.

Why you cannot try other client?

The logs are completed, sir.

The connection is mediated by a cyberark component that functions as a proxy, so it does not support other client types.

I can upload a file without issue, but when trying to download it fails with error 4.

This does work with other FTP tools like FileZilla

@d: Please start a new thread and post logs both from WinSCP and FileZilla.