
INFO | jvm 2 | 1 10:52:07 | INFO: Connection established Details: : nnect: : Software caused connection abort: recv failed This is the error that we got when trying to get the host key: The other port is working fine like 4045, 8122, 2022 etc. Use FileZilla if you want the most recent version of your FTP client with working queuing or use Cyberduck v5.4.4 if you are determined to use Cyberduck and don't mind running an older version in order to retain proper transfer queue control! Cyberduck v5.4.4: Windows installer Cyberduck v5.4.4: Mac installer Edit: This is due to be fixed in v7.In our webmethods IS server, the SFTP feature is not able to get the host key for our TP which is using port 22. It's less of a "queue" and more of a free-for-all. Even if you only choose one transfer, every single download placed in the queue starts immediately and without waiting for the previous ones to complete. This loss of functionality was clearly not intentional because the corresponding options, which allow you to select the number of simultaneous transfers, are still there - they just no longer do anything. This bug has apparently been ignored by the developers in all of the last 24 updates. Sadly, they subsequently broke this essential feature in v6.0 when they tried to add other, less important, features - in May 2017. Queuing was originally added in v2.8 of Cyberduck, way back in September 2007. Transfer queuing is currently broken on both Mac and PC.

Otherwise, they would take too long and run a high risk of failing. If you are downloading, for example, massive 30 GB torrents from a seedbox, you need to process them consecutively, not run multiple file transfers concurrently. AVOID UNTIL FIXED The most important feature of any FTP client is the ability to queue your downloads.

"Transfer queue" feature broken since v.6 (May 2017).
