When attempting to upload files with Ipswitchâs
WS_FTP 6.0 and later, the following error may
appear: â503 No PORT command issued first.â
According to Ipswitch, the problem can be
worked around by setting âPassive Modeâ to off.
This setting can be found on the Host Info tab on
the connection screen. From MSNBC.
November 13, 2000