host2host xfer error

[mike_fba]

* FlashFXP v2.1, build 924, registered.
* OS Win2K SP4
* Running behind NAT No
* Running firewall Yes, Zonalarm 4.0.123
* Running Antivirus Yes, NAV 2004
* Network CABLE 3000/256

additional info if related
* FTP server(s) name Serv-U 5.0.0.1


I have never had a problem with FXP, but now I am unable to figure out what exactly is going wrong with a site to site transfer in order to remedy it.

I am trying to copy a batch from one server to another. The target host is running Serv-U 5.0, I am not sure what FTP5 is running. I connect to the hosts and attempt to copy from Host2 to Host1. After about 7-8 MBs have moved, I receive the following error.

426 Data connection: Illegal seek.

This aborts the current transfer and connection cannot be restablished. Here is the logfile showing the transaction.


LIST
150 Opening ASCII mode data connection for /bin/ls.
226 Transfer complete.
List Complete: 117 bytes in 0.30 (0.11 KBps)
PASV
227 Entering Passive Mode (211,117,61,237,223,69)
PORT 211,117,61,237,223,69
200 PORT Command successful.
STOR File_I_Need.sfv
150 Opening ASCII mode data connection for File_I_Need.sfv.
RETR File_I_Need.sfv
226 Transfer complete.
150 Opening ASCII mode data connection for File_I_Need.sfv (1038 bytes).
226- [Ul: 0.0MB] [Dl: 8132.3MB] [Speed: 0.00K/s] [Free: 58634MB]
226 [Section: ISO] [Credits: 14.6MB] [Ratio: Unlimited]
Transferred: File_I_Need.sfv 1 KB in 0.63 (1.01 KBps)
TYPE I
200 Type set to I.
TYPE I
200 Type set to I.
PASV
227 Entering Passive Mode (211,117,61,237,223,72)
PORT 211,117,61,237,223,72
200 PORT Command successful.
STOR [FTP5] - ( 516M 37F - COMPLETE ) - [FTP5]
150 Opening BINARY mode data connection for [FTP5] - ( 516M 37F - COMPLETE ) - [FTP5].
RETR [FTP5] - ( 516M 37F - COMPLETE ) - [FTP5]
226 Transfer complete.
150 Opening BINARY mode data connection for [FTP5] - ( 516M 37F - COMPLETE ) - [FTP5] (0 bytes).
226- [Ul: 0.0MB] [Dl: 8132.3MB] [Speed: 0.00K/s] [Free: 58634MB]
226 [Section: ISO] [Credits: 14.6MB] [Ratio: Unlimited]
Transferred: [FTP5] - ( 516M 37F - COMPLETE ) - [FTP5] 0 bytes in 0.66 (1.00 KBps)
PASV
227 Entering Passive Mode (211,117,61,237,223,74)
PORT 211,117,61,237,223,74
200 PORT Command successful.
STOR File_I_Need.r14
150 Opening BINARY mode data connection for File_I_Need.r14.
RETR File_I_Need.r14
150 Opening BINARY mode data connection for File_I_Need.r14 (15000000 bytes).
426 Data connection closed, receive file File_I_Need.r14 aborted.
Transfer Failed!
PASV
426 Data connection: Illegal seek.
ABOR
226 ABOR command successful.
Transfer Failed!
PASV
227 Entering Passive Mode (211,117,61,237,223,180)
PORT 211,117,61,237,223,180
200 PORT Command successful.
STOR File_I_Need.r35
150 Opening BINARY mode data connection for File_I_Need.r35.
RETR File_I_Need.r35
227 Entering Passive Mode (211,117,61,237,223,181)
425 Cannot open data connection.
Transfer Failed!
PASV
425 Can't open data connection.
ABOR
226 ABOR command successful.
Transfer Failed!
PASV
227 Entering Passive Mode (211,117,61,237,223,186)
PORT 211,117,61,237,223,186
200 PORT Command successful.
STOR File_I_Need.r13
150 Opening BINARY mode data connection for File_I_Need.r13.
RETR File_I_Need.r13
227 Entering Passive Mode (211,117,61,237,223,188)
425 Cannot open data connection.
Transfer Failed!
PASV
425 Can't open data connection.
ABOR
226 ABOR command successful.
Transfer Failed!


I can copy smaller files. I can run a large batch of files as long as the filesizes are only a few MB without incident. Any large files seem to abort after 7-8MB.

I am trying to give you not too little and not too much information, if this is incomplete I can supply more data.

Thanks you.

[mike_fba]

My ID didn't help speed anything, so I took it out. ;)

[Linkster]

mike, not putting in your flashfxpid only hurts you. Please download the latest beta and try. I believe your problems should be solved.

[mike_fba]

Originally posted by Linkster
mike, not putting in your flashfxpid only hurts you. Please download the latest beta and try. I believe your problems should be solved.

I thought that posting my user ID would give unregistered users an easy way to get into your beta site. I replaced it so that I would be able to receive help with this issue.

I tried with the new beta, similar result: failed after 9 out of 15MB. I am sure this will make more sense to you guys than it down to me.


[15:06:13] [R] PASV
[15:06:13] [R] 227 Entering Passive Mode (211,117,61,237,193,20)
[15:06:13] [L] PORT 211,117,61,237,193,20
[15:06:13] [L] 200 PORT Command successful.
[15:06:13] [L] STOR File_I_Need.rar
[15:06:13] [L] 150 Opening BINARY mode data connection for File_I_Need.rar.
[15:06:13] [R] RETR File_I_Need.rar
[15:06:14] [R] 150 Opening BINARY mode data connection for File_I_Need.rar (15000000 bytes).
[15:09:38] [L] 426 Data connection closed, receive file File_I_Need.rar aborted.
[15:10:03] [R] 426 Data connection: Illegal seek.
[15:10:03] Transfer Failed!


TIA,
mike

[MxxCon]

Originally posted by mike_fba
[15:10:03] [R] 426 Data connection: Illegal seek.
from what i gathered about this error(which seem to occur only on linux server, and not on serv-u) it seems like it's server error, and has nothing to do with flashfxp itself..
from what i gathered it seems like the server is unexpectadly closing the connection. if possible try to find out if that server is behind router/firewall. if so, see if server admin can change routers/firewall idle connection timeout value...

while you are waiting for the answer, consider trying the following options, try to enable "send noop during transfer" and/or try "alternative fxp" option. they might, or might not fix this issue, it's doesn't hurt to try :)