LDAP Configuration failed to bind as a user

I have enabled LDAP configuration in my vault server using following command

vault write auth/ldap/config \
 binddn="CN=username,OU=S,DC=S,DC=W,DC=A" \
 case_sensitive_names="false" \
 insecure_tls="true" \
 url="ldap://ip" \
 userattr="samaccountname" \
 userdn="OU=S,DC=S,DC=W,DC=A" \

But I am facing failed to bind as a user. When I tested the connection using kinit I am able to authenticate with credentials.

Getting below error

auth.ldap: error getting user bind DN: error="LDAP bind (service) failed: LDAP Result Code 49 "Invalid Credentials": : LdapErr: , comment: AcceptSecurityContext error, data 52e, v3839."

Thanks For the Help.