Hi,
Sorry I missed the bit about the other computer accessing OK. Check the hosts file on the errant machine to see if it has an entry for the FTP machine that is set to local. See C:\WINDOWS\system32\drivers\etc\hosts

>Thank you for your reponse.
>
>But No. It has nothing to do with the FTP Server.
>
>The FTP server is offered by our ISP is always ON. As I mentioned, another computer on the same LAN, has no problem connecting right away.
>
>I believe the problem is that; Some application is blocking the FTP port. I need to know which PORT, and which application is blocking it.
>
>
>>Is the web server going to sleep, and now awakening before the FTP request timeouts.
>
>>>In my VFP8 application I use the Mabry FTPCtrl ActiveX module to perform certain ftp uploads/downloads.
>>>
>>?Sometimes, all of a sudden the module has problem connecting to the server.
>>>
>>>I turn off all the Firewalls and Virus / Worm Protections that I can see running on the Windows "System Tray", with no success. While another computer on the LAN, has NO problem connecting.
>>>
>>?Once this problem occurs, the only way I have been able to get it working again, has been to ask the user to reinstall windows!! (an embarrassing situation to be in)
>>>
>>>Is there some sort of a "Port Analyzer Utility" that can list "which ports are being used by which applications", and "which ports are being blocked by which application" ?
>>
>>>Of course, any other help or clue, would be greatly appreciated...
>>
>>Cyrus