# FileZilla logs in but fails to retrieve directory listing (IPv6 / 522 error) **URL:** \ **Category:** Hosting Support\ **Created:** [October 29, 2026, 7:00pm UTC](https://forum.infinityfree.com/t/filezilla-logs-in-but-fails-to-retrieve-directory-listing-ipv6-522-error/121667 "2026-10-29T19:00:51Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Sandip\_dolar](https://forum.infinityfree.com/letter_avatar/sandip_dolar/32/5_5575768a8748004e209b776fc1b2916d.png) [@Sandip\_dolar](https://forum.infinityfree.com/u/Sandip_dolar)\ **Post date:** [October 29, 2026, 7:00pm UTC](https://forum.infinityfree.com/t/filezilla-logs-in-but-fails-to-retrieve-directory-listing-ipv6-522-error/121667/1 "2026-10-29T19:00:51Z")
### Website URL [https://sun-media-clone.page.gd/](https://sun-media-clone.page.gd/) ### Error Message [FileZilla](https://filezilla-project.org/download.php?type=client) successfully connects to my InfinityFree FTP server and logs in using explicit FTP over TLS, but it fails when retrieving the remote directory listing. Relevant [FileZilla](https://filezilla-project.org/download.php?type=client) log: Connecting to [64:ff9b::b91b:860b]:21 TLS connection established. Logged in Command: EPSV Response: 500 Unknown command Command: EPRT |2|[IPv6 address]|… Response: 522 Only IPv4 is supported (1) Error: Failed to retrieve directory listing ### Other Information Hello InfinityFree Support, I’m trying to migrate my local WordPress website to my InfinityFree hosting account. [FileZilla](https://filezilla-project.org/download.php?type=client) successfully connects, establishes TLS, and logs in, but it cannot retrieve the remote directory listing. I have tried both FTP hostnames provided in the InfinityFree settings. I also tried connecting through a different Wi-Fi connection, but the same problem occurs. The log suggests that [FileZilla](https://filezilla-project.org/download.php?type=client) is connecting through an IPv6/NAT64 address, while the server reports that only IPv4 is supported. Could you please advise how I can resolve this FTP connection issue? Thank you. ---
**Author:** ![system](https://infinityfree-forum-uploads.s3.dualstack.eu-central-1.amazonaws.com/original/3X/b/0/b024fd3fa88bae093c9576e55c2c94e33f890206.svg) [@system](https://forum.infinityfree.com/u/system)\ **Post date:** [October 29, 2026, 7:00pm UTC](https://forum.infinityfree.com/t/filezilla-logs-in-but-fails-to-retrieve-directory-listing-ipv6-522-error/121667/2 "2026-10-29T19:00:52Z")
Welcome to the InfinityFree community forum! Good to have you here. - Most people answering here are volunteers. They’re often the fastest source of help. Admin (the only staff member) checks in about once a day for issues on our end. - Volunteers can’t see your account or website. Share what you actually see, like error messages and what happens when you try something. That’s more useful than your theory of what’s wrong. - AI tools often get InfinityFree wrong. If a volunteer’s advice differs from what an AI told you, please try the volunteer’s suggestion first. - Solving an issue is a joint effort. Try the suggestions you get and report back what happened. ---
**Author:** ![Lemni](https://forum.infinityfree.com/user_avatar/forum.infinityfree.com/lemni/32/68303_2.png) [@Lemni](https://forum.infinityfree.com/u/Lemni)\ **Post date:** [October 29, 2026, 7:01pm UTC](https://forum.infinityfree.com/t/filezilla-logs-in-but-fails-to-retrieve-directory-listing-ipv6-522-error/121667/3 "2026-10-29T19:01:14Z")
_Beep boop, I’m a bot! I dug through the forum to get you started. I sometimes get things wrong though, so do with this what you will until a human has a look._ Your log shows [FileZilla](https://filezilla-project.org/download.php?type=client) connecting through an IPv6 address, `64:ff9b::b91b:860b`. That’s a NAT64 address, which wraps an IPv4 address inside IPv6, and it decodes to `185.27.134.11`. So your network seems to be IPv6-only and translating to IPv4. The login works because the translator handles the control connection. The directory listing needs a second, separate connection, and [FileZilla](https://filezilla-project.org/download.php?type=client) sets that up with `EPRT |2|…` using your IPv6 address. The server answers `522 Only IPv4 is supported`, so the listing fails. I didn’t find a topic or article about this exact combination, so this comes from reading your log. Our “Help, I cannot connect to FTP” article says a normal [FileZilla](https://filezilla-project.org/download.php?type=client) log shows a line like `Connecting to 185.27.134.11:21...`. It also says you can enter that IP address as the FTP hostname. It suggests a VPN if your network restricts FTP connections. > [@Help, I cannot connect to FTP](https://forum.infinityfree.com/docs?topic=49307): > > Being able to access your hosting account over FTP is very important to manage your website files. However, there are reason why you may have trouble connecting to the FTP service. This article explains a few things you can try to fix your FTP connection. Login to your control panel After your account has been created, or reactivated after a suspension, you may need to login to the hosting control panel once to enable FTP access to your account. You can login to the control panel by logging in… Could you try one of these and tell me what the log shows? 1. Enter `185.27.134.11` as the host in [FileZilla](https://filezilla-project.org/download.php?type=client) instead of the hostname. If the log then shows `Connecting to 185.27.134.11:21`, the listing should work. If it still shows a `64:ff9b::` address, your network is translating the connection regardless. 2. Connect through a VPN. That gives you an ordinary IPv4 route to the server. ---
**Author:** ![Admin](https://forum.infinityfree.com/user_avatar/forum.infinityfree.com/admin/32/36437_2.png) [@Admin](https://forum.infinityfree.com/u/Admin)\ **Post date:** [October 30, 2026, 10:15am UTC](https://forum.infinityfree.com/t/filezilla-logs-in-but-fails-to-retrieve-directory-listing-ipv6-522-error/121667/4 "2026-10-30T10:15:25Z")
> [@Sandip\_dolar](#): > > The log suggests that [FileZilla](https://filezilla-project.org/download.php?type=client) is connecting through an IPv6/NAT64 address, while the server reports that only IPv4 is supported. Yes, that’s exactly it. Our FTP server only supports IPv4, but your network only supports IPv6. Your network provider is running a IPv6-to-4 gateway, but that’s causing the FTP connection to fail. We see that happen a lot on IPv6-only connections. The proper way to fix it on our end would be to add IPv6 support, but that’s not on our roadmap. So I think your best bet is to connect to the FTP server over a VPN. A VPN (generally) does give you an IPv4 connection, so you an bypass the NAT64 gateway on your network.