OPERATION_TIMEDOUT encountered when ftp upload a large file

I targeted to upload a file (~1GB) to a ftp server (FileZilla Server) using passive mode.
I use libcurl-7.20.0 in my application, but CURLE_OPERATION_TIMEDOUT was encountered after the file is uploaded to the server.
The same error code I encountered when I use curl-7.20.0 (windows version).

Here is the output when I upload with curl-7.20.0:
D:\ryan.chan\curl>curl-7.20.0 -v --ftp-method nocwd --disable-epsv -T ../SLX_2210 ftp://192.168.180.2:2010 -u rchan:rchan
* About to connect() to 192.168.180.2 port 2010 (#0)
* Trying 192.168.180.2... % Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0connected
* Connected to 192.168.180.2 (192.168.180.2) port 2010 (#0)
< 220-FileZilla Server version 0.9.34 beta
< 220-written by Tim Kosse (Tim.Kosse@gmx.de)
< 220 Please visit http://sourceforge.net/projects/filezilla/
> USER rchan
< 331 Password required for rchan
> PASS rchan
< 230 Logged on
> PWD
< 257 "/" is current directory.
* Entry path is '/'
> PASV
* Connect data stream passively
< 227 Entering Passive Mode (192,168,180,2,4,226)
* Trying 192.168.180.2... connected
* Connecting to 192.168.180.2 (192.168.180.2) port 1250
> TYPE I
< 200 Type set to I
> STOR SLX_2210
< 150 Connection accepted
} [data not shown]
99 1413M 0 0 99 1406M 0 8084k 0:02:59 0:02:58 0:00:01 8192k* Remembering we are in dir ""
* FTP response timeout
* control connection looks dead
100 1413M 0 0 100 1413M 0 8085k 0:02:59 0:02:59 --:--:-- 8182k* Closing connection #0

curl: (28) FTP response timeout

However, I successfully get my job done using curl-7.19.7 with return code curle_ok.

Here is the result when I use curl-7.19.7:

D:\ryan.chan\curl>curl-7.19.7 -v --ftp-method nocwd --disable-epsv -T ../SLX_2210 ftp://192.168.180.2:2010 -u rchan:rchan
* About to connect() to 192.168.180.2 port 2010 (#0)
* Trying 192.168.180.2... connected
* Connected to 192.168.180.2 (192.168.180.2) port 2010 (#0)
< 220-FileZilla Server version 0.9.34 beta
< 220-written by Tim Kosse (Tim.Kosse@gmx.de)
< 220 Please visit http://sourceforge.net/projects/filezilla/
> USER rchan
< 331 Password required for rchan
> PASS rchan
< 230 Logged on
> PWD
< 257 "/" is current directory.
* Entry path is '/'
> PASV
* Connect data stream passively
< 227 Entering Passive Mode (192,168,180,2,4,227)
* Trying 192.168.180.2... connected
* Connecting to 192.168.180.2 (192.168.180.2) port 1251
> TYPE I
< 200 Type set to I
> STOR SLX_2210
< 150 Connection accepted
} [data not shown]
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
99 1413M 0 0 99 1409M 0 8076k 0:02:59 0:02:58 0:00:01 8179k* Remembering we are in dir ""
< 226 Transfer OK
100 1413M 0 0 100 1413M 0 8076k 0:02:59 0:02:59 --:--:-- 8180k* Connection #0 to host 192.168.180.2 left intact

> QUIT
< 221 Goodbye
* Closing connection #0

My testing environment (upload source):
- Windows 2003 Server x64
- curl-7.20.0 / curl-7.19.7

My testing environment (upload destination):
- Windows 2003 Server x64
- Filezilla server 0_9_34