"Croydon" <Croy***@discussions.microsoft.com> wrote in message
news:7E9D7404-370B-47B6-A0D4-BB9A0E700CB6@microsoft.com...
> My company have clients that transmit data to us by FTP.
>
> For the vast majority there is no problem, but in some cases the data
> is not
> transmitted. We have tracked this down to the fact that these clients
> use
> ADSL and a router.
>
> We have tested the system using XP Remote Desktop and the FTP starts
> then
> eventually times-out. Our server shows the file but with zero bytes
> received.
>
> There are two other points. A small file can be FTPed without a
> problem. A
> larger file of 5MB will not transmit. When we disable the XP Firewall
> the 5MB
> will be transferred immediately.
>
> As this does not happen with all clients with routers, we can only
> assume
> that there is some setting within XP or the XP Firewall that is
> causing the
> problem.
>
> I have tried setting ‘Use Passive……’ off and opened Port 20 in the
> Firewall,
> but it still will not transfer.
>
> Have there been any XP updates to resolve this issue?
>
> The FTP is run from within a Visual Basic program. The OS is XP Pro
> SP2.
>
> Any suggestions would be appreciated.
>

On 22/12/2005 "Croydon" <Croy***@discussions.microsoft.com> wrote:
>My company have clients that transmit data to us by FTP.
>
>For the vast majority there is no problem, but in some cases the data is not
>transmitted. We have tracked this down to the fact that these clients use
>ADSL and a router.
>
>We have tested the system using XP Remote Desktop and the FTP starts then
>eventually times-out. Our server shows the file but with zero bytes received.
>
>There are two other points. A small file can be FTPed without a problem. A
>larger file of 5MB will not transmit. When we disable the XP Firewall the 5MB
>will be transferred immediately.
>
>As this does not happen with all clients with routers, we can only assume
>that there is some setting within XP or the XP Firewall that is causing the
>problem.
>
>I have tried setting âUse Passiveâ¦â¦â off and opened Port 20 in the
Firewall,
>but it still will not transfer.
>
>Have there been any XP updates to resolve this issue?
>
>The FTP is run from within a Visual Basic program. The OS is XP Pro SP2.
>
>Any suggestions would be appreciated.
>

"Yves Leclerc" wrote:

> On 22/12/2005 "Croydon" <Croy***@discussions.microsoft.com> wrote:
> >My company have clients that transmit data to us by FTP.
> >
> >For the vast majority there is no problem, but in some cases the data is not
> >transmitted. We have tracked this down to the fact that these clients use
> >ADSL and a router.
> >
> >We have tested the system using XP Remote Desktop and the FTP starts then
> >eventually times-out. Our server shows the file but with zero bytes received.
> >
> >There are two other points. A small file can be FTPed without a problem. A
> >larger file of 5MB will not transmit. When we disable the XP Firewall the 5MB
> >will be transferred immediately.
> >
> >As this does not happen with all clients with routers, we can only assume
> >that there is some setting within XP or the XP Firewall that is causing the
> >problem.
> >
> >I have tried setting âUse Passiveâ¦â¦â off and opened Port 20 in the
> Firewall,
> >but it still will not transfer.
> >
> >Have there been any XP updates to resolve this issue?
> >
> >The FTP is run from within a Visual Basic program. The OS is XP Pro SP2.
> >
> >Any suggestions would be appreciated.
> >
>
> FTP also uses port 21 and the sending PCs should also using 'Passive FTP mode."
>
> --
> ---
>
> Y.
>
>