I've ran into issues with both FileZilla and Cyberduck, were if there's too many concurrent connections made to the SFTP service, my connections start getting blocked. The only way I can upload multiple files in a reliable way is by setting the amount of concurrent connections to 1. Uploading a single file seems to go fine pretty much always, except when mutliple files were very recently blocked (seems to suggest some type of firewall perhaps?)
I've tried with multiple IP's / hotspot etc., but the only difference that seemed to matter was the amount of active connections at once.
When I did use multiple connections at once, I ran into these types of erorr messages ("permission denied", "key invalid" etc.)
Hi,
So I've just tested this personally, with Cyberduck and Filezilla, it seems to work perfectly on my end. Could you test another connection or app to make sure this is happening again?
