The following extract from the wsftp help might clarify things a little? 

Passive Transfers (definition)

Normally, when you connect to an FTP site, the site establishes the da
+ta connection to your PC (the client). However, if the site allows pa
+ssive transfers, you can have your PC establish the data connection.
We recommend that you use passive mode for most transfers. Note that p
+assive mode may be required for users who are behind some types of ro
+uter-based firewalls or behind a gateway requiring passive transfers.

[download]

My only thought is that maybe one way is bypassing a proxy/firewall and the other isn't? HTH.

In reply to Re: Re: Re: Net::FTP via CGI mystery by BrowserUk
in thread Net::FTP via CGI mystery by George_Sherston

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