Yes. that's what I have seen in the past. MS is claiming NAT device issue.
> Thanks for the reply, Bernard.
>
> I had found the link you've referred to, but didn't see how it applied to
> my
> situation besides the fact that I'm not utilizing the default ports of 20
> and
> 21. Unfortunately, there are no firmware updates available for my router,
> so
> I guess I'm stuck, eh? Are there any other ways around this issue?
>
> Thanx.
>
> "Bernard Cheah [MVP]" wrote:
>
>> If you google the old threads, you will find this is related to
>> FTP Error: 500 Invalid PORT Command
>>
http://support.microsoft.com/?id=281193 >>
>> while some claimed after upgrading the router firmware fix this, yet some
>> claimed this is not working. so good luck.
>>
>> --
>> Regards,
>> Bernard Cheah
>>
http://www.iis.net/ >>
http://www.iis-resources.com/ >>
http://msmvps.com/blogs/bernard/ >>
>>
>> "Steven Sinclair" <StevenSinclair@discussions.microsoft.com> wrote in
>> message news:E7F028C7-E5F8-41BA-A5D5-BF58B1A85A60@microsoft.com...
>> > Windows Server 2003 Enterprise Edition R2 SP2
>> > IIS FTP - Port 8064
>> > NetGear Router with Port Forwarding enabled for multiple ports
>> > (including
>> > 8064)
>> >
>> > When I attempt to connect to the FTP on my LAN, I have no problems
>> > whatsoever. I can connect with any of the 12 users I've configured and
>> > all
>> > are forwarded to the appropriate login folders and have the appropriate
>> > accesses as configured.
>> >
>> > When I attempt to connect to the FTP from outside my LAN, I have all
>> > sorts
>> > of issues...I have yet to make one successful connection. Every time,
>> > I'm
>> > receiving the following errors via WS_FTP...
>> >
>> > 500 Invalid PORT Command.
>> > ! Failed "port":
>> > !Retrieve of folder listing failed (0)
>> >
>> > The log states I've connected, but I'm never prompted for usernames or
>> > passwords. If I attempt to use Windows FTP, I can't even "see" the IP
>> > to
>> > connect to.
>> >
>> > The real interesting part about this issue is that I'm also running
>> > multiple
>> > web servers and email servers with no issues at all.
>> >
>> > Any ideas?
>> >
>> > Thanx.
>>
>>
>>