Codebeamer field academy course environment issue

Hello Team,

Im new to Codebeamer and training myself on the basics. 

I am working on "Install and Manage Codebeamer Instances" Course. In the module 4- Configuration and management for cb user , 1st activity , I am not able to authenticate for user in testing. Attached is the screenshot of the error.  Error msgs below.

Can you please direct on how to get this issue resolved ? I had raised a ticket earlier and was directed to post in community. Kindly me let me know if you need further information on this. 

"Error message : LDAP/Active Directory authentication failed: Failed to borrow DirContext from pool.; nested exception is org.springframework.ldap.OperationNotSupportedException: [LDAP: error code 53 - UNWILLING_TO_PERFORM: Bind failed: Cannot Bind for Dn uid=admin,ou=People,dc=example,dc=com]; nested exception is javax.naming.OperationNotSupportedException: [LDAP: error code 53 - UNWILLING_TO_PERFORM: Bind failed: Cannot Bind for Dn uid=admin,ou=People,dc=example,dc=com]"

Error msg : Your ALM License will expire in 7 days. Please contact PTC for a license code.
When requesting the license code please attach your unique Host-ID, which is: WIN-0A:FF:F2:49:7E:C3