Dynamics CRM 2016 SP1 on Windows Server 2016 ADFS4.0

hi,

I have same issue.

Cannot add/update Relying Parties from the GUI from metadata files “Method not found”

https://blogs.technet.microsoft.com/pie/2016/10/23/adfs-2016-cannot-addupdate-relying-party-from-the-gui-from-metadata-files/

So,I use powershell to set ADFS.Then,worked it.

But,I have other issue.

Sing-in ADFS,then redirect CRM.

Without manipulating the screen,then pop-up windows authentication.

It is not ADFS Authentication(CRM Extranal),It is Windows authentication(CRM Internal).

I am using other Internet line (CRM Extranal Access) to access CRM.

Why, after SSO lefttime, pop-up windows authentication?