title: LDAP Bind with Windows AD fails with 80090308: LdapErr: DSID-0C0903AA
body: <p>I am trying to bind an LDAP client to a Windows AD LDAP server and I see this error in the packet capture:</p>
  
  <p>resultCode: invalidCredentials (49)
  80090308: LdapErr: DSID-0C0903AA, comment: AcceptSecurityContext error, data 51f, v1772</p>
  
  <p>I understand this is an authentication error but wish to know what does "data 51f" stand for? Any help would be appreciated. </p>