Changing LDAP config to new Domain Controller issue

After creating new domain controllers I can no longer authenticate with our on premise gitlab. I have went into /etc/gitlab/gitlab.rb and changed the old host name to the new host name and that is all I changed. I saved it, cleared cache with “sudo gitlab-rake cache:clear” and then used “sudo gitlab-ctl reconfigure” and then restarted services and also rebooted the box but it will not pick up the new domain controller. Even when using “sudo gitlab-rake gitlab:ldap:check” it still showing the old domain controller. Am I missing a step somewhere or is there some where else that I need to update the FQDN at because I cannot figure out why this is not updating.

If someone could help would be greatly appreciated