certauth.adfs.mydomain unexpectedly closed connection

MattH6935 1 Reputation point

Hello everyone...fairly new to adfs, but I have setup a Sharepoint/ADFS environment currently working using claims based authentication supported by forms authentication. My next task is switch this over to certificate authentication. The WAP server has been created and is publishing the Relying Party (Sharepoint) and I have setup AlternateTLSBinding for the certauth.adfs.mydomain. I believe all certificates are in place.

As of right now when I type the address to my sharepoint site, I am redirected to the adfs login page, where I can either type in my username/password (which works) OR click login with certificate. When I click the login with certificate link I am brought to the next screen which talks about selecting the certificate then I am forwarded to the certauth.adfs.mydomain and receive a unexpected closed the connection error.

I am at a loss, I dont know what else to check anymore...

PS> firewall is wide open for testing on this.
PS>my external dns entries have adfs pointing to adfs server and certauth.afds pointing to WAP server as I have read in multiple place.

Thanks for the help!

Active Directory Federation Services
Active Directory Federation Services
An Active Directory technology that provides single-sign-on functionality by securely sharing digital identity and entitlement rights across security and enterprise boundaries.
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SharePoint Server Management
SharePoint Server Management
SharePoint Server: A family of Microsoft on-premises document management and storage systems.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Jerry Xu-MSFT 7,941 Reputation points

    Hi, @MattH6935 ,

    Have you checked ULS log and event viewer? There may be related error messages which contain more information.

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