{"id":3058,"date":"2025-11-02T17:01:21","date_gmt":"2025-11-02T15:01:21","guid":{"rendered":"https:\/\/itsimple.info\/?p=3058"},"modified":"2025-11-02T17:01:22","modified_gmt":"2025-11-02T15:01:22","slug":"unable-to-connect-to-ldap-on-windows-server-2025-domain-controller-from-fortigate","status":"publish","type":"post","link":"https:\/\/itsimple.info\/?p=3058","title":{"rendered":"Unable to connect to LDAP on Windows Server 2025 Domain Controller from Fortigate"},"content":{"rendered":"\n<p>After modifying the Domain Controller Policy like below, it works now both with SSL disabled and enabled.<\/p>\n\n\n\n<p>Domain Controller Policy<br>===Computer Configuration<br>======Policies<br>=========Windows Settings<br>============Security Settings<br>===============Local Policies<br>==================Security Options<br>=====================Domain controller: LDAP server channel binding token requirements: \u201cWhen Supported\u201d<br>=====================Domain controller: LDAP server signing requirements: \u201cNone\u201d<br>=====================Domain controller: LDAP server Enforce signing requirements: \u201cDisabled\u201d<br>=====================Network security: LDAP client encryption requirements: \u201cNegotiate Sealing\u201d<br>=====================Network security: LDAP client signing requirements: \u201cNegotiate Signing\u201d<\/p>\n\n\n\n<figure class=\"wp-block-pullquote has-vivid-green-cyan-color has-text-color has-link-color has-large-font-size wp-elements-913a8d28a4fab8f1d7b7023910a23e04\"><blockquote><p>Good Luck<\/p><\/blockquote><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>After modifying the Domain Controller Policy like below, it works now both with SSL disabled and enabled. Domain Controller Policy===Computer Configuration======Policies=========Windows Settings============Security Settings===============Local Policies==================Security Options=====================Domain controller: LDAP server channel binding token requirements: \u201cWhen Supported\u201d=====================Domain controller: LDAP server signing requirements: \u201cNone\u201d=====================Domain controller: LDAP server Enforce signing requirements: \u201cDisabled\u201d=====================Network security: LDAP client encryption requirements: \u201cNegotiate Sealing\u201d=====================Network security: [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21,4,12,14,15],"tags":[],"class_list":["post-3058","post","type-post","status-publish","format-standard","hentry","category-operating-systems","category-tech","category-tutorials","category-windows","category-windows-server"],"_links":{"self":[{"href":"https:\/\/itsimple.info\/index.php?rest_route=\/wp\/v2\/posts\/3058","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itsimple.info\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itsimple.info\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itsimple.info\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/itsimple.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3058"}],"version-history":[{"count":1,"href":"https:\/\/itsimple.info\/index.php?rest_route=\/wp\/v2\/posts\/3058\/revisions"}],"predecessor-version":[{"id":3059,"href":"https:\/\/itsimple.info\/index.php?rest_route=\/wp\/v2\/posts\/3058\/revisions\/3059"}],"wp:attachment":[{"href":"https:\/\/itsimple.info\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itsimple.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itsimple.info\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}