Hi,
After a several month hiatus, I downloaded the latest version of Filezilla, with plans to use it for FTP. I got an error, and when I run the network connection test, I get the results shown at the bottom of this post. I have disabled my Windows 7 firewall, so all that is left is my Motorola SBG5680 modem, right? Can anyone diagnose what is going on and tell me what I should do to connect? Advice is much appreciated.

Connecting to probe.filezilla-project.org
Response: 220 FZ router and firewall tester ready
USER FileZilla
Response: 331 Give any password.
PASS 3.5.3
Response: 230 logged on.
Checking for correct external IP address
Retrieving external IP address from h ttp://ip.filezilla-project.org/ip.php
Checking for correct external IP address
IP 67.184.145.53 gh-bie-bef-fd
Response: 200 OK
PREP 51253
Response: 200 Using port 51253, data token 1426734314
PORT 67,184,145,53,200,53
Connection timed out.
Connection closed

Dani AI

Generated

Following 's report and 's suggestion to confirm the remote host, the most likely causes are: the FTP server is not answering on port 21; the Motorola SBG5680 or the ISP is blocking the path; or the host requires FTPS/SFTP on a different port. The FileZilla router test only verifies the client's ability to accept an active-mode data connection; a separate timeout on the control (port 21) connection points at the remote host or the network path rather than the local Windows firewall.

Isolation steps: from the same PC and from another network, attempt a raw TCP connect to port 21. On Windows the Telnet client can be enabled and used:

telnet allamericanbird.com 21

On Linux/macOS use:

nc -vz allamericanbird.com 21

A visible FTP banner means port 21 is reachable; a timeout shows the server or a firewall dropping the connection. A successful connection to a known-good public FTP site (for example ftp.gnu.org) and a repeat test over a different internet link (mobile tether) will separate local/network problems from a remote outage.

Router/modem checks: log into the SBG5680, assign a static LAN IP for the PC, and for testing either forward port 21 to that IP or place it briefly in a DMZ. Enable any "FTP ALG" or "FTP helper" if available. In FileZilla, compare Passive vs Active transfer modes—Passive is usually NAT-friendly because the client initiates both control and data connections; Active requires the server to connect back and often fails behind consumer NAT.

If port 21 times out from multiple networks, the hosting provider's control panel or support can confirm whether FTP is offered and which port/protocol to use. If the site is reachable elsewhere but not behind the SBG5680, the ISP or modem NAT/firewall is likely blocking the path. DMZ should be disabled after testing; prefer passive FTP or targeted port forwarding and collect FileZilla and modem firewall logs for deeper diagnosis.

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All 3 Replies

What is the error you get when you actually run this from your computer. The test results you posted above look OK.

Jorge,
The message I get from Filezilla is that it times out, like the network test does.
Thanks
Matt

Status: Resolving address of allamericanbird.com
Status: Connecting to 63.141.142.162:21...
Error: Connection timed out
Error: Could not connect to server
Status: Waiting to retry...
Status: Resolving address of allamericanbird.com
Status: Connecting to 63.141.142.162:21...
Error: Connection timed out
Error: Could not connect to server

So, your test results in the first post look fine. Ok, so have you verified that the target system "allamericanbird.com" does have FTP services listening and they allow this traffic through their firewall?

to validate whether you client is working properly, try accessing an FTP site that you know for sure works with other FTP client software.

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