Getting Timeout when send 2GB file

Good day,

Im currently using WinSCP to transfer files from my office NAS to my home FTP.
I have around 30+ files.
And each file is around 2GB (Because it is Acronis backup files.)
If i try send small files it has no problem.
But when i send the 2GB files, I will get these error message when the file reaches 99%

Copying files to remote side failed.
(A)bort, (R)etry, (S)kip, Ski(p) all: Abort
Lost connection.
Timeout detected.
Could not retrieve directory listing



Below is my script.

option batch on
option confirm off
option reconnecttime 3
open ftp://shingo:abc@ftp.dyndns:21/Backup
lcd "D:\Backup\"
synchronize remote -delete
exit


How do i make the transfer successful?
Please advice me.
Thank you in advance for your help.

What version of WinSCP are you using? Do you have the same problem using other FTP clients?

Hi prikryl,
Im currently using 5.5.2 in a windows 2012.
The FTP server Im using is Windows 2008 R2 FTP role.
So far I did manage to get it to run with a little tweak of the command.

option batch continue
option confirm off
option reconnecttime 3
open ftp://****
lcd "Z:\****"
synchronize remote -delete
exit

So far it does work.
But when i run it on the Windows 2012 Scheduler it will give me "Error Code: incorrect function 0x80070001"
Is there a better sets of commands?
Thank you for your help.

Regards,
Shingo

Please attach a full log file showing the problem (using the latest version of WinSCP).

Hi prikryl,
Attach is the log file.
I have remove some info in the log.