Hi,
Please note how things are setup to clarrify the situation:
On premesis Sugar Enterprise Version 11.0.2
Server 1 (Existing Prod Server)
Server 2 (New Prod Server)
Both are running off the same database server host.
Both have their own IIS Server with config files for Sugar/php/elasticsearch etc.
Both have PHP installed with same extensions
Both are setup the same connecting to our Active Directory servers. The LDAP config is saved in the Database so the it is setup the same for both Server 1 and 2. This is configured in the Admin module (https://support.sugarcrm.com/Documentation/Sugar_Versions/11.0/Ent/Administration_Guide/Password_Management/#LDAP)
Both have their own DNS so we can use a test DNS for the new server.
Server 1 is able to authenticate using LDAP.
Server 2 is unable to authenticate using LDAP
Any suggestions or areas I can look closer would be appreciated.