{"id":10019,"date":"2026-06-08T09:14:33","date_gmt":"2026-06-08T07:14:33","guid":{"rendered":"https:\/\/mybox.com\/help\/?post_type=manual_kb&#038;p=10019"},"modified":"2026-06-08T09:14:34","modified_gmt":"2026-06-08T07:14:34","slug":"configuring-the-tls-version-in-filezilla","status":"publish","type":"manual_kb","link":"https:\/\/mybox.com\/help\/en\/knowledgebase\/configuring-the-tls-version-in-filezilla\/","title":{"rendered":"Configuring the TLS Version in FileZilla"},"content":{"rendered":"\n<div class=\"translation-block translation-block-merged\">\n<p class=\"wp-block-paragraph\">If your FTP connection suddenly stops working or FileZilla reports a TLS-related error, the cause may be an outdated TLS version configured in the application.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Modern FTP servers require secure connections using newer TLS versions, such as TLS 1.2 or TLS 1.3, while support for older versions like TLS 1.0 and TLS 1.1 has been discontinued due to security concerns.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/configuring-the-tls-version-in-filezilla\/#Contents\" >Contents<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/configuring-the-tls-version-in-filezilla\/#What_Is_TLS\" >What Is TLS?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/configuring-the-tls-version-in-filezilla\/#Why_TLS_Versions_Matter\" >Why TLS Versions Matter<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/configuring-the-tls-version-in-filezilla\/#Configuring_TLS_in_FileZilla\" >Configuring TLS in FileZilla<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/configuring-the-tls-version-in-filezilla\/#Step_1\" >Step 1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/configuring-the-tls-version-in-filezilla\/#Step_2\" >Step 2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/configuring-the-tls-version-in-filezilla\/#Step_3\" >Step 3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/configuring-the-tls-version-in-filezilla\/#Step_4\" >Step 4<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/configuring-the-tls-version-in-filezilla\/#Step_5\" >Step 5<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/configuring-the-tls-version-in-filezilla\/#Step_6\" >Step 6<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/configuring-the-tls-version-in-filezilla\/#Recommended_FTP_Encryption_Settings\" >Recommended FTP Encryption Settings<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/configuring-the-tls-version-in-filezilla\/#Protocol\" >Protocol<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/configuring-the-tls-version-in-filezilla\/#Encryption\" >Encryption<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/configuring-the-tls-version-in-filezilla\/#Logon_Type\" >Logon Type<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/configuring-the-tls-version-in-filezilla\/#Troubleshooting_Connection_Issues\" >Troubleshooting Connection Issues<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/configuring-the-tls-version-in-filezilla\/#Update_FileZilla\" >Update FileZilla<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/configuring-the-tls-version-in-filezilla\/#Verify_FTP_Credentials\" >Verify FTP Credentials<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/configuring-the-tls-version-in-filezilla\/#Check_Firewall_or_Antivirus_Software\" >Check Firewall or Antivirus Software<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/configuring-the-tls-version-in-filezilla\/#Verify_Server_Details\" >Verify Server Details<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/mybox.com\/help\/en\/knowledgebase\/configuring-the-tls-version-in-filezilla\/#Summary\" >Summary<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Contents\"><\/span>Contents<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>What Is TLS?<\/li>\n\n\n\n<li>Why TLS Versions Matter<\/li>\n\n\n\n<li>Configuring TLS in FileZilla<\/li>\n\n\n\n<li>Troubleshooting Connection Issues<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_TLS\"><\/span>What Is TLS?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<\/div>\n\n<div id=\"mybox-676006913\" class=\"mybox-content mybox-entity-placement\"><div class=\"early-access-banner-inpost\">\r\n  <div class=\"banner-left-inpost\">\r\n    <div class=\"icon-box-inpost\">\r\n      <img decoding=\"async\" src=\"https:\/\/mybox.com\/help\/wp-content\/uploads\/2026\/02\/square-info-icon.svg\" alt=\"Info\">\r\n    <\/div>\r\n    <div class=\"text-box-inpost\">\r\n      <span class=\"label-inpost\"><span class=\"translation-block translation-block-banner-text\">Early access<\/span><\/span>\r\n      <h4><span class=\"translation-block translation-block-banner-text\">Still need help?<\/span><\/h4>\r\n      <p><span class=\"translation-block translation-block-banner-text\">Contact our customer service team.<\/span><\/p>\r\n    <\/div>\r\n  <\/div>\r\n\r\n  <div class=\"banner-right-inpost\">\r\n    <a href=\"https:\/\/panel.mybox.com\/helpdesk2\/v\/list\/\" class=\"banner-button-inpost\"><span class=\"translation-block translation-block-banner-text\">Message us<\/span><\/a>\r\n  <\/div>\r\n<\/div><\/div>\n\n<div class=\"translation-block translation-block-merged\"><p class=\"wp-block-paragraph\">TLS (Transport Layer Security) is a cryptographic protocol that secures communication between your computer and a remote server.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">TLS provides:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Data encryption<\/li>\n\n\n\n<li>Data integrity protection<\/li>\n\n\n\n<li>Server authentication<\/li>\n\n\n\n<li>Protection against eavesdropping and data tampering<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">When using FTP over TLS (FTPS), all login credentials and transferred files are protected during transmission.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_TLS_Versions_Matter\"><\/span>Why TLS Versions Matter<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Older versions of TLS, such as:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>TLS 1.0\nTLS 1.1\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">are no longer considered secure and are no longer supported by most hosting providers, web browsers, and modern applications.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Current standards typically support:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>TLS 1.2\nTLS 1.3\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Using a supported TLS version helps ensure secure and reliable FTP connections.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Configuring_TLS_in_FileZilla\"><\/span>Configuring TLS in FileZilla<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Step_1\"><\/span>Step 1<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Open FileZilla.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Step_2\"><\/span>Step 2<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">From the top menu, select:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Edit \u2192 Settings\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Step_3\"><\/span>Step 3<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In the settings window, select:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Connection\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">from the menu on the left.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Step_4\"><\/span>Step 4<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Locate the:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>TLS Settings\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">or<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>TLS Options\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">section.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Step_5\"><\/span>Step 5<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ensure that FileZilla is configured to use:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Default TLS Version\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">or, if a version must be selected manually:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>TLS 1.2\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Step_6\"><\/span>Step 6<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Click:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>OK\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">to save the changes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Recommended_FTP_Encryption_Settings\"><\/span>Recommended FTP Encryption Settings<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">When creating or editing a site profile in FileZilla, use:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Protocol\"><\/span>Protocol<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>FTP - File Transfer Protocol\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Encryption\"><\/span>Encryption<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>Require explicit FTP over TLS\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Logon_Type\"><\/span>Logon Type<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>Normal\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Then enter your FTP username and password.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Troubleshooting_Connection_Issues\"><\/span>Troubleshooting Connection Issues<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If the connection still fails after changing the TLS settings:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Update_FileZilla\"><\/span>Update FileZilla<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ensure you are using the latest version of FileZilla, which includes support for current TLS standards.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Verify_FTP_Credentials\"><\/span>Verify FTP Credentials<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Check that:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Hostname is correct<\/li>\n\n\n\n<li>Username is correct<\/li>\n\n\n\n<li>Password is correct<\/li>\n\n\n\n<li>FTP account is active<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Check_Firewall_or_Antivirus_Software\"><\/span>Check Firewall or Antivirus Software<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Some security software may block encrypted FTP connections.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Temporarily disable the software for testing purposes or add an exception for FileZilla.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Verify_Server_Details\"><\/span>Verify Server Details<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Confirm that you are using the correct:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>FTP hostname<\/li>\n\n\n\n<li>Port number<\/li>\n\n\n\n<li>Encryption mode<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">provided by your hosting service.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Summary\"><\/span>Summary<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">TLS protects your FTP connection by encrypting communication between your computer and the server.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If FileZilla reports TLS-related connection errors:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Open <strong>Edit \u2192 Settings<\/strong>.<\/li>\n\n\n\n<li>Navigate to <strong>Connection \u2192 TLS Settings<\/strong>.<\/li>\n\n\n\n<li>Use the default TLS configuration or select <strong>TLS 1.2<\/strong>.<\/li>\n\n\n\n<li>Save the changes and reconnect.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Using a modern TLS version ensures secure file transfers and compatibility with current hosting infrastructure.<\/p>\n<\/div>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"template":"","format":"standard","manualknowledgebasecat":[23],"manual_kb_tag":[412,516,854,1719,1820,2183,4362,4363,4364,4365],"class_list":["post-10019","manual_kb","type-manual_kb","status-publish","format-standard","hentry","manualknowledgebasecat-ftp","manual_kb_tag-ftps","manual_kb_tag-filezilla","manual_kb_tag-transport-layer-security","manual_kb_tag-ftp-over-tls","manual_kb_tag-tls","manual_kb_tag-filezilla-configuration","manual_kb_tag-filezilla-settings","manual_kb_tag-tls-versions","manual_kb_tag-4364","manual_kb_tag-4365"],"_links":{"self":[{"href":"https:\/\/mybox.com\/help\/en\/wp-json\/wp\/v2\/manual_kb\/10019","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mybox.com\/help\/en\/wp-json\/wp\/v2\/manual_kb"}],"about":[{"href":"https:\/\/mybox.com\/help\/en\/wp-json\/wp\/v2\/types\/manual_kb"}],"author":[{"embeddable":true,"href":"https:\/\/mybox.com\/help\/en\/wp-json\/wp\/v2\/users\/1"}],"version-history":[{"count":1,"href":"https:\/\/mybox.com\/help\/en\/wp-json\/wp\/v2\/manual_kb\/10019\/revisions"}],"predecessor-version":[{"id":10025,"href":"https:\/\/mybox.com\/help\/en\/wp-json\/wp\/v2\/manual_kb\/10019\/revisions\/10025"}],"wp:attachment":[{"href":"https:\/\/mybox.com\/help\/en\/wp-json\/wp\/v2\/media?parent=10019"}],"wp:term":[{"taxonomy":"manualknowledgebasecat","embeddable":true,"href":"https:\/\/mybox.com\/help\/en\/wp-json\/wp\/v2\/manualknowledgebasecat?post=10019"},{"taxonomy":"manual_kb_tag","embeddable":true,"href":"https:\/\/mybox.com\/help\/en\/wp-json\/wp\/v2\/manual_kb_tag?post=10019"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}