Cyberduck Mountain Duck CLI

#9464 closed defect (duplicate)

FTP Response 421

Reported by: william205 Owned by: dkocher
Priority: highest Milestone: 4.9.1
Component: ftp-tls Version: 4.9
Severity: critical Keywords:
Cc: Architecture:
Platform: Mac OS X 10.11


Hi, recently I have started having a strange issue where I am getting an FTP Response 421 error (screenshot attached) whenever I try and upload more than 1 file through FTP, it lets me upload one at a time fine but obviously I am not going to go through folders with 100s of files uploading each file at a time. I have already contacted the company who provides my VPS and they have said that all the settings on the VPS are fine so it must be an issue with Cyberduck. Could you please help me resolve this asap?!

Attachments (1)

Screen Shot 2016-04-14 at 16.20.20.png (74.8 KB) - added by william205 on Apr 14, 2016 at 3:27:51 PM.
Error screenshot

Download all attachments as: .zip

Change History (3)

Changed on Apr 14, 2016 at 3:27:51 PM by william205

Error screenshot

comment:1 Changed on Apr 15, 2016 at 12:29:32 PM by dkocher

  • Milestone set to 5.0
  • Resolution set to duplicate
  • Status changed from new to closed

Duplicate for #9368. Please limit the number of connections allowed for file transfers or disable the use of multiple connections for file transfers in Preferences → Transfers → Transfer Files by choosing Open new connection.

comment:2 Changed on Apr 19, 2016 at 12:25:15 PM by dkocher

  • Milestone changed from 5.0 to 4.9.1
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