The Computer Logon Modern Authentication solution consists of many components, including:

  1. Computer Logon Client
  2. Authentication Service
  3. Policy Service
  4. Token Service

The client needs to connect to various services. But how does the client know the address/endpoint of those services?

The answer lies in another service called the Autodiscover Service, which provides the endpoints of those services to the clients in a JSON document. 

The Autodiscover Service can be a part of an MFA Server. For instance, the DualShield MFA server includes the Autodiscover Service for Computer Logon MA.

If you are not using the DualShield MFA server, such as Entra MFA, then you need the Computer Logon Management Portal, which also includes the Autodiscover Service.

Finally, how does the client find the Autodiscover Service URL?

The answer depends on the computer's domain membership. There are 3 types of PCs:

On-Prem AD joined PC


Entra ID joined PC


Hybrid joined PC