I get "Algorithm negotiation failed" error when I try to connect servers with SSH Secure Shell program. What can I do?
The version of SSH program you are using may not be supporting one of the encryption algorithms of the server. Therefore, you may get an error like “Algorithm negotiation failed”. For this reason, you can use the newest version of SSH or try a different program. WinSCP is the one of the FTP programs you can use. You can make operations like changing the permissions of your files in the server, copying/moving a files and folders.
Additionally, for users who are more comfortable with command line PuTTY is a free software which enable to make necessary operations.
https://winscp.net/eng/download.php address can be used to download these two programs.