FileZilla stuck at Initializing TLS

Question

I am having an issue with FileZilla. I try to establish an FTP connection with my server but end up stuck at the same initial message after trying quite a few rounds. I am able to use the same host, username, password and port to login using Chrome browser but not for FileZilla. Any idea?

    Status: Connection established, waiting for welcome message...
    Response:   220---------- Welcome to Pure-FTPd [privsep] [TLS] ----------
    Response:   220-You are user number 1 of 50 allowed.
    Response:   220-Local time is now 16:13. Server port: 21.
    Response:   220-This is a private system - No anonymous login
    Response:   220-IPv6 connections are also welcome on this server.
    Response:   220 You will be disconnected after 15 minutes of inactivity.
    Command:    AUTH TLS
    Response:   234 AUTH TLS OK.
    Status: Initializing TLS...

So far I tried download and install the older version but different error appears (failed to retrieve directory listing) reference to https://trac.filezilla-project.org/ticket/9995

Solution 1

Had this problem also, just go to file ->site manager. On the encryption drop down change to "use only Plain FTP (insecure). And that's it!

Solution 2

I faced the same issue many times, and when the hosting provider and filezilla forums couldn't help, i myself tried digging it deeper to figure out the exact problem. Putting it altogether for you all..

There are mainly two scenarios under which you can face this issue..

First: Server you are trying to access doesn't support connection over TLS.
Second: You ISP doesn't allow to initialize TLS on FTP.

But since now most of the standard hosting providers do support FTP over TLS, so the issue is mainly due to ISP, Especially mobile operators disallow this sought of connection, so people using mobile hotspots are more likely to face this problem. Like in India half of the mobile operators doesn't allow FTP over TLS. Just switch the data SIM or the ISP and try again.

Solution 3

The most likely reason is that the server you're connecting to does not support FTP over TLS. Try connecting with another protocol, or with plain FTP instead and see what happens.

There is a LENGTHY bug report on the Filezilla bug tracker website from people re-opening a bug on this issue, because the feedback FileZilla gives is less than helpful in this situation.

Comments

[agold]

This might be interesting for you: forum.filezilla-project.org/viewtopic.php?t=23615

[William Kheng]

Thanks for reply but i went through and test out a few suggestions inside and still getting the same error.

[Daniel B]

@WilliamKheng Please update your question with the things you’ve tried.

[Daniel B]

Oh yeah, and are you perhaps located behind a firewall (at the office or whatever)?

[William Kheng]

Nope. I dealing with cloud server that hosting all the web files. I tried to adjust on my pc firewall setting but it is not affecting.

[William Kheng]

support.hostgator.com/articles/ftp/… i just found out this way and it works

[MariusMatutiae]

Do you control the server?

[William Kheng]

It's CPanel web server. I have the authority to create FTP account.

[Steffen Ullrich]

This is probably different. With "234 AUTH TLS OK." the server clearly indicates that it supports TLS but the TLS handshake hangs.

[Dale Anderson]

Dang, I missed that part. My bad. The other thing you can check is whether you have the hostname specified correctly. If the SSL certificate name is 'foo.example.com', but you're trying to connect to 'bar.example.com', this can also cause the connection not to work - although I don't remember whether the connection fails outright, or if it hangs. But either way, connecting via IP address gets around that issue.

[Steffen Ullrich]

If the hostname is wrong than certificate validation should fail, that is no hang. If in this case the connection with IP only succeeds than I would not trust this FTP client because this usually means that no proper certificate validation is done at all.

[Dale Anderson]

Have you tried connecting with any other FTP clients? Have you tried connecting without encryption?

[Ramhound]

This is a horrible suggestion. The author's FTP server clearly supports encrypted connection, so they should be used, not using encrpted conenctions when they are supported is a bad idea

[SRDC]

This is actually a known issue on certain shared hosting (like HostGator). It will act as if TLS is working (because they sort of have it setup, IIRC), but it doesn't work properly, hence Filezilla can't use it, but fails without a truly helpful prompt. Therefore, you have to follow this advice to use Filezilla, or connect via HostGator's web interface.

[SagarPPanchal]

perfect!!! +1 :)

[Tariq]

Yes @McDonald's i am serious, 90% of filezilla TLS blocked issues reported by my clients got resolved by switching the ISP. In India most of the people prefer using Mobile hotspots as their internet source, as high speed 4G data plans are very cheap here. Its because of such plans India has emerged as the most data consuming country of world 2017.. check stats internetworldstats.com/top20.htm

[Caleb Jay]

On the off chance that this is happening to you in the country of Taiwan, I can confirm that many ISPs here don't allow TLS on FTP.

[Rick Mac Gillis]

Wow... just wow. Why would ISPs be so shady as to block a secure connection when mobile engineers need that most? Someone seriously needs to fire their sys admins like BOTG says... forum.filezilla-project.org/viewtopic.php?t=50415

[John]

For security, we should not turn off TLS encryption because of "TLS does not work". My case was that ISP did allow TLS on FTP.