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Wierd file xfer problem in XP

By sadamsvalley ·
I have remote units that transmit data to central hq every week via FTP. It seems that some of our units connect and begin the xmit and then it quits. Can xmit files ok if they are under 1100 bytes, any more and it will create the filename and quit.The only thing common is they all have WinXP Pro but all WXPPro don't have the problem. It tends to be on DSL circuits but happens on some dialup. SBC Yahoo DSL doesn't xmit at all but SBCY dial does??? Things I've tried.
Set up another FTP server on the net not behind a firewall--no go
Not use VPN--no go
Set MTU to correct setting--no go
Have them disable DSL and dial directly to my RAS--WORKS
Any ideas???

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Wierd file xfer problem in XP

by sadamsvalley In reply to Wierd file xfer problem i ...

Point value changed by question poster.

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Wierd file xfer problem in XP

by sadamsvalley In reply to Wierd file xfer problem i ...

Also tried PASV mode on the server and it didn't help

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Wierd file xfer problem in XP

by phil.hall In reply to Wierd file xfer problem i ...

Since you tried almost everything. I'd say (off the top of my head) that this was a problem with a router. Dialin works without problem, some DSL works some doesn't. Also, are they just using the command prompt FTP commands, or a client like CuteFTP?

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Wierd file xfer problem in XP

by sadamsvalley In reply to Wierd file xfer problem i ...

On FTP they use all of it, the program uses FTP api, command line and mapping a network drive or opening a UNC path in XP doesn't work also. I also tried installing WS_FTP and it didn't work. Same thing on the 1100 bytes. Could it be the routing on XP Pro, or registry?

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Wierd file xfer problem in XP

by phil.hall In reply to Wierd file xfer problem i ...

Since there are other (network related problems) I'd say there's an install snafu that happened. Put the Windows XP CD in the drive. Open a command prompt window and type in SFC /PURGECACHE and let it run. Then reboot and try again. Some file has definitely been corrputed.

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by sadamsvalley In reply to Wierd file xfer problem i ...

Poster rated this answer.
See comments above for fix I found. Thanks for the help though

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by sadamsvalley In reply to Wierd file xfer problem i ...

Whatever it was, installing a SMC7004FW Cable/DSL router worked. The problem as far as I can tell is in XP (client side) and may be even further into the WAN miniport driver. That seems to be the only common item among all of the computers that are doing it. Just to ensure it was not my network I set up a FTP server on a completly different provider so my firewall and net were never touched and the same problem happened. I don't know why the SMC works. All I can think is that it is handling the PPPoE negotiation and communication using a linux kernel instead of the Windows WAN miniport driver. Now the PC sees the Internet as a standard Ethernet connected device with no smoke or mirrors.

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by sadamsvalley In reply to Wierd file xfer problem i ...

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