Connected yesterday, won't connect today

[buzzbomb]

* FlashFXP v2.1, build 924, registered
* OS - WinXP
* Running behind NAT/router - Yes, custom Linux dial-up router
* Running firewall - Yes, the same
* Running Antivirus - Yes, AVG Antivirus
* Network - Dial-up through router

Here's a log:

Connecting to ptd.akira
Connected to ptd.akira -> IP=204.186.201.5 PORT=21
220 ProLog User FTP ready.
USER akira7
331 Password required for akira7.
PASS (hidden)
230 User akira7 logged in.
SYST
215 UNIX Type: L8
REST 100
350 Restarting at 100. Send STORE or RETRIEVE to initiate transfer
REST 0
350 Restarting at 0. Send STORE or RETRIEVE to initiate transfer
CWD /public_html
250 CWD command successful.
PWD
257 "/public_html" is current directory.
TYPE A
200 Type set to A
PASV
227 Entering Passive Mode (204,186,201,5,175,15).
Data Socket Error: Connection timed out
List Error

I was using FlashFXP with no problems yesterday to connect to this FTP server, now it just times out. I've tried other servers with FlashFXP and they work fine. Conversely, I've tried my server with Microsoft FTP and it works. Why won't FlashFXP work now?

Mike

[bigstar]

Perhaps the ftp server is improperly configured and the PASV port FlashFXP is trying to connect to is firewalled.

I believe ftp.exe uses Active mode by default (PASV disabled).

[buzzbomb]

Turned off PASV, and it connected on the first try. It was working in passive mode just yesterday with this very same server. They must have just firewalled it. Thanks for the suggestion.