I'm trying to configure ADFS 2.0 with thinktecute STS as an SP. The relying party has been configured successfully using the RP metadata. But when an authentication request is being sent to the ADFS 2.0 STS, it is trying to authenticate and it is failing although the user is a valid user in the server. It is just re-showing the authentication prompt in the browser again and again.
I can find in the Event viewer of the windows server the following logs in the security log:
An account was successfully logged on.
An account was logged off.
Any clue why this is happening? Did I miss anything?