# 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:** 1\ **Showing post:** 3
**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. --- _[View the full topic](https://forum.infinityfree.com/t/filezilla-logs-in-but-fails-to-retrieve-directory-listing-ipv6-522-error/121667)._