FTP put error : 426 Connection closed; transfer aborted

Hi,
We are using pub.client:ftp service to put files to archive directory. We are getting ftp error “426 Connection closed; transfer aborted” though the files are put successfully. I came across a similar thread in this forum
http://www.wmusers.com/forum/showthread.php?p=65771
but the discussion in this above thread did not mention any solutions. Any idea why ftp throws this error even when the put is successful.

regards

try to switch the transfertype you are using (active or passive), see if it make difference.