openid provider - endpoint?

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C#

Step 1
A few weeks back I created an asp.net page that can use openid (google, yahoo and myopenid successfully tested). I send a request and get the requested information back.
(also see here[^])

Step 2
Second on my list is to create an openid provider for ourselves, so I started with the example provided in the DotNetOpenAuth library. (using version 4.2.2.13055). I can use the 'bob' login from the sample itself, but when I try to connect to this provider from my own solution (from Step 1), it always gives me the error "No OpenID endpoint found".

I googled this, which brings up many stackoverflow samples, but none of the solutions seem to work. I put breakpoints to the pages it's supposed to call, but it is not getting there.

Does anyone have any ideas or suggestions towards solving this problem?

Many thanks.