Orchestrator Windows AD Login Failed Error Code 200

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Orchestrator windows AD login failed error code 200.

Error:

UiPath.IdentityServer.Directory.LdapAD.LdapADAdapter Failed to get site info from DC xxxxx.xyz.com with exception System.DirectoryServices.Protocols.LdapException: The supplied credential is invalid.

at System.DirectoryServices.Protocols.LdapConnection.BindHelper(NetworkCredential newCredential, Boolean needSetCredential)

at System.DirectoryServices.Protocols.LdapConnection.Bind()

at UiPath.IdentityServer.Directory.LdapAD.MsLdapClient.InitConnectionAsync()

at UiPath.IdentityServer.Directory.LdapAD.LdapDcLocator.GetSitesAsync(ServiceHostEntry[] allDCs), will try other DCs

Resolution:

  1. Log in to the Management portal as a system administrator
  2. Go to Users and select the Authentication Settings tab
  3. In the External Providers section, click Configure under Active Directory
  4. Select the Use Kerberos Auth checkbox and Save
  5. Restart the IIS site. This is required whenever changes are performed to External Providers.