You cannot set a value higher than 10 here because multiple concurrent sessions from your FileZilla client can put a load on the remote FTP server. This way you will allow the FTP client to download or upload simultaneously 10 files in parallel threads, which significantly speeds up the overall speed when transferring multiple files. Change the “Maximum Number of Connections” to 10 (by default FileZilla uses only two simultaneous FTP connections). Go over to the Transfer Settings tab and enable the option “ Limit number of simultaneous connections”. You can increase the number of parallel FTP sessions in your client settings and bypass this server restriction. But, you can upload multiple files at the same time in different FTP sessions. Most FTP servers limit the maximum file upload speed for a session.

Step 3: Speed Up FileZilla FTP Transfer by Increasing the Simultaneous Connection Number Specify the FTP server (host) name and credentials to connect (or use Anonymous logon type). Run FileZilla and create a new connection to the FTP host ( File > Site Manager > New Site). Step 2: Create a New FTP Connection in FileZilla

Filezilla ssh timeout