The port forwarding is already set on the router to send port 21 to the dedicated ftp server, and for pasv, i have it forwarding port 1100 as well, and that setting is set in ws_ftp firewall options. When I try to connect, either from cmd or from any ftp client, I get a Connection Refused message. Nothing shows up in the router logs, or in the server logs. This happens no matter what machine, or what ISP I am connecting from, even other machines in the network using the private IP. The only time a connection can be established is from the local machine, using either loopback, netbios name, or private ip. I have tried different ftp server software, and the same thing happens, so I know it's not just ws_ftp server that is the problem. If I run it on any other port than 21 there is no problem at all.
I have updated the firmware in the router, applied all patches to w2k server, completely uninstalled and reinstalled ws_ftp, and none of it seemed to help. The funny thing is that if I put the other machine's IIS server on port 21 and change the port forwarding, that works just fine, so I have it narrowed down to something on that machine, just don't know what.
TIA -HJ
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