In a browser on your client machine, enter the URL of the SharePoint server. For example,
https://adfsweb.treyresearch.net/default.aspx
Select the Identity Server from home realm and submit the request.
If you are not prompted for the realm, clear all cookies in the browser and try again.
Log in as a user to Access Manager Identity Server.
Verify that you can access SharePoint. If you see only a page stating Server Error in '/adfs' Application, see Enabling Logging on the ADFS Server and follow the instructions in Common Errors.