{"id":2049,"date":"2020-12-30T07:01:36","date_gmt":"2020-12-30T07:01:36","guid":{"rendered":"https:\/\/www.cigatisolutions.com\/blog\/?p=2049"},"modified":"2024-12-23T10:36:04","modified_gmt":"2024-12-23T10:36:04","slug":"sql-server-error-18456","status":"publish","type":"post","link":"https:\/\/www.cigatisolutions.com\/blog\/sql-server-error-18456\/","title":{"rendered":"Fix Microsoft SQL Server Error 18456 Login Failed for User"},"content":{"rendered":"\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-top\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;2049&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;top&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;1&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;5&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Rate this post&quot;,&quot;legend&quot;:&quot;5\\\/5 - (1 vote)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;Fix Microsoft SQL Server Error 18456 Login Failed for User&quot;,&quot;width&quot;:&quot;142.5&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 142.5px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            5\/5 - (1 vote)    <\/div>\n    <\/div>\n<p>Microsoft developed a relational database management system known as Microsoft SQL Server. It was developed for the primary function of collecting recovered data as needed by different applications. In MS SQL Server, the generic error faced by users is Microsoft SQL Server Error 18456. SQL Error 18456 usually indicates that you have entered invalid login credentials in SQL Database. It is also displayed due to the corrupt or damaged MDF or NDF files.<\/p>\n<p>Well, no need to worry about Error 18456. We are going to discuss a few different solutions to fix the SQL Login Failed for User error. Now, before moving to solutions, Let\u2019s consider the possible reasons for the 18456 error.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-light-blue 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\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/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:\/\/www.cigatisolutions.com\/blog\/sql-server-error-18456\/#Reasons_Behind_SQL_Login_Failed_Issue\" >Reasons Behind SQL Login Failed Issue<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.cigatisolutions.com\/blog\/sql-server-error-18456\/#Free_Ways_to_Fix_Error_SQL_Server_Login_Failed_for_User\" >Free Ways to Fix Error SQL Server Login Failed for User<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.cigatisolutions.com\/blog\/sql-server-error-18456\/#Method_1_Fix_Error_Using_SQL_Server_Management_Studio\" >Method 1: Fix Error Using SQL Server Management Studio<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.cigatisolutions.com\/blog\/sql-server-error-18456\/#Method_2_Troubleshoot_to_Fix_the_Error_18456_in_MS_SQL_Server\" >Method 2: Troubleshoot to Fix the Error 18456 in MS SQL Server<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.cigatisolutions.com\/blog\/sql-server-error-18456\/#Method_3_Resolve_SQL_Server_Error_18456_using_Reliable_Tool\" >Method 3: Resolve SQL Server Error 18456 using Reliable Tool<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.cigatisolutions.com\/blog\/sql-server-error-18456\/#Some_Attributes_of_SQL_Recovery_Tool\" >Some Attributes of SQL Recovery Tool<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.cigatisolutions.com\/blog\/sql-server-error-18456\/#Final_Verdict\" >Final Verdict<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Reasons_Behind_SQL_Login_Failed_Issue\"><\/span>Reasons Behind SQL Login Failed Issue<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>There are several reasons for Login Failed Microsoft SQL Server Error 18456, We have listed some of the possible reasons in this section.<\/p>\n<ul class=\"list_content\">\n<li>When the login password is expired, then it plays an important role in the appearance of this error.<\/li>\n<li>Due to corrupt NDF and MDF files of the SQL Server Database.<\/li>\n<li>The possibility for this error is Windows Authentication. If it is enabled in the security section, then SQL Server refuses to recognize the user.<\/li>\n<li>Whenever any user tries to disable the username from the server, It can cause the password to expire.<\/li>\n<\/ul>\n<p>After reading all the reasons carefully, now moving toward the best solution to fix the Microsoft SQL Error 18456. In the next section, you will go through different methods to fix the error.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Free_Ways_to_Fix_Error_SQL_Server_Login_Failed_for_User\"><\/span>Free Ways to Fix Error SQL Server Login Failed for User<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In this section, we are going to explain the most well-known top 3 solutions to fix the Microsoft SQL Server Error 18456 error. Follow each method carefully in a stepwise manner.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Method_1_Fix_Error_Using_SQL_Server_Management_Studio\"><\/span>Method 1: Fix Error Using SQL Server Management Studio<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Firstly, run the <strong>SQL Server Management Studio<\/strong> and press the <strong>Connect<\/strong> button.<img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"https:\/\/www.cigatisolutions.com\/blog\/wp-content\/uploads\/2020\/12\/SQL-Server-Error-18456-4.png\" alt=\"SQL Server Error 18456\" width=\"533\" height=\"405\" \/><\/li>\n<li>Here expand your <strong>Server Name, Security, and Logins<\/strong>, then right-click on the <strong>New Login<\/strong> option.<img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"https:\/\/www.cigatisolutions.com\/blog\/wp-content\/uploads\/2020\/12\/SQL-Server-Error-18456.png\" alt=\"SQL Server Error 18456\" width=\"478\" height=\"247\" \/><\/li>\n<li>Now, click on the <strong>Search<\/strong> button to define the <strong>Windows User Name<\/strong> and press the <strong>Check Names<\/strong> button.<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"https:\/\/www.cigatisolutions.com\/blog\/wp-content\/uploads\/2020\/12\/SQL-Server-Error-18456-2-1.png\" alt=\"SQL Server Error 18456\" width=\"492\" height=\"270\" \/><\/li>\n<li>After that, click on the <strong>Server Roles<\/strong> on the left pane, and mark the sysadmin opinion. Click <strong>Ok<\/strong>.<img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"https:\/\/www.cigatisolutions.com\/blog\/wp-content\/uploads\/2020\/12\/SQL-Server-Error-18456-3.png\" alt=\"SQL Server Error 18456\" width=\"491\" height=\"444\" \/><\/li>\n<li>Then, you can confirm it by double-clicking the <strong>User Name<\/strong>.<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.cigatisolutions.com\/blog\/wp-content\/uploads\/2020\/12\/SQL-Server-Error-18456-.png\" alt=\"\" width=\"488\" height=\"436\" \/><\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Method_2_Troubleshoot_to_Fix_the_Error_18456_in_MS_SQL_Server\"><\/span>Method 2: Troubleshoot to Fix the Error 18456 in MS SQL Server<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>First, <strong>Visit the Logins<\/strong> options, choose the user you need to check, and go to the <strong>Properties<\/strong> section.<\/li>\n<li>Here, you can check whether password expiration is allowed by operating in the <strong>General<\/strong> tab option.<\/li>\n<li>Later, go to the <strong>Status<\/strong> tab and verify whether your account is secured or not. Here, in this case, the <strong>Login<\/strong> is secured out option does not begin, and it\u2019s grayed out, which means the account is not secured.<\/li>\n<\/ul>\n<p>Sometimes, It has been seen that this SQL Server Error 18456 occurs due to corruption in NDF and MDF files of SQL Server Database. So, to repair the corruption in NDF and MDF files, you can opt for a third-party tool that we are going to discuss in the next section.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Method_3_Resolve_SQL_Server_Error_18456_using_Reliable_Tool\"><\/span>Method 3: Resolve SQL Server Error 18456 using Reliable Tool<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Cigati <a href=\"https:\/\/www.cigatisolutions.com\/database\/sql-recovery\/\">SQL Recovery Tool<\/a><\/strong> is the one &amp; only utility in the field of SQL Server Database. It is the most powerful online software available that can recover and restore corrupt SQL database MDF and NDF files. Also, being an advanced software its interface is so easy that even a novice user can use it without any technical knowledge. Additionally, it restores the database objects like tables, stored procedures, views, programmability, triggers, and other functions without data hampering. Further, using this tool, you can easily <a href=\"https:\/\/www.cigatisolutions.com\/blog\/open-mdf-file\/\">Open MDF files without SQL Server<\/a> Installation.<\/p>\n<div class=\"text-center\"><a href=\"https:\/\/www.cigatisolutions.com\/demo-version\/Cigati-SQL-Recovery.exe\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone my-1 wp-image-4130 size-full\" src=\"https:\/\/www.cigatisolutions.com\/blog\/wp-content\/uploads\/2021\/11\/downlad-btn-new.png\" alt=\"Download Now\" width=\"163\" height=\"40\" \/><\/a>\u00a0 \u00a0 <a href=\"https:\/\/www.cigatisolutions.com\/database\/sql-recovery\/purchase-now.html\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone my-1 wp-image-4129 size-full\" src=\"https:\/\/www.cigatisolutions.com\/blog\/wp-content\/uploads\/2021\/11\/buy-btn-new.png\" alt=\"Buy Now\" width=\"163\" height=\"40\" \/><\/a><\/div>\n<h4><span class=\"ez-toc-section\" id=\"Some_Attributes_of_SQL_Recovery_Tool\"><\/span>Some Attributes of SQL Recovery Tool<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul class=\"list_content\">\n<li>This utility fixes the SQL Server Error 18456 by recovering the MDF and NDF files of the SQL Server.<\/li>\n<li>Recover SQL data files including SQL database files, including objects like tables, views, stored procedures, default, triggers, and other functions.<\/li>\n<li>Available with two options to export recovered files, either with a Schema part of a corrupt MDF file or into a new database file.<\/li>\n<li>Offers dual recovery modes that deal with different types of corruption.<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Final_Verdict\"><\/span>Final Verdict<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Here we have discussed the various reasons for error 18456 in MS SQL Server. Besides, we have mentioned different hand-operated solutions to fix the issue. Moreover, SQL Server Error 18456 occurs due to corruption in NDF and MDF files. In this case, we strongly recommend you use the secure professional utility to repair the corrupt NDF and MDF files. It also reduces inconsistency and data loss during the restoration of SQL Server database files.<\/p>\n<p><strong>You May Also Read:<\/strong> <a href=\"https:\/\/www.cigatisolutions.com\/blog\/fix-sql-server-error-5171\/\">Fix SQL Server Error 5171: MDF Is Not A Primary Database File<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Microsoft developed a relational database management system known as Microsoft SQL Server. It was developed for the primary function of<a class=\"read-more ml-1 main-read-more\" href=\"https:\/\/www.cigatisolutions.com\/blog\/sql-server-error-18456\/\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":2058,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[43],"tags":[],"class_list":["post-2049","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-data-recovery"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Top 3 Ways to Fix Microsoft SQL Server Error 18456 Login Failed for User<\/title>\n<meta name=\"description\" content=\"If you are getting an error while log in to Microsoft SQL Server, then here in this blog find the solutions to fixed SQL Server Error 18456.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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