InvalidOperationException: IDX20803: Unable to obtain configuration from

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1

I’m integrating Auth0 into 2 separate ASP.Net MVC applications with OWIN. The first web app uses Auth0 fine. The second, I configured exactly the same way on the same computer. The second is giving the following 2 errors:

InvalidOperationException: IDX20803: Unable to obtain configuration from: 'https://ddks-staging.deltadental.auth0.com/.well-known/openid-configuration’`

[IOException: IDX20804: Unable to retrieve document from: ‘https://ddks-staging.deltadental.auth0.com/.well-known/openid-configuration’.]`

The URL show the configuration JSON properly. When I run the following code, I am not prompted with the Auth0 login screen, but I think it is because the prior 2 errors are preventing it from getting necessary configuration information:

        HttpContext.GetOwinContext().Authentication.Challenge(new AuthenticationProperties
        {
            RedirectUri = Url.Action("Index", "Home")
        },"Auth0");

I’m thinking it is a transport issue and may have something to do with SSL/TLS. I’m running the app in visual studio and have configured debugging to enable SSL. Visual Studio created a self signed cert for the first app and I’m thinking this second app would use the same cert.

Has anyone seen this error or know how to proceed?

Bill

2

That is indeed intriguing; have you already tried to configure Fiddler globally as a proxy for .NET and see if you can capture different behavior at the network level for the two applications?

3

I am also facing the exact same issue and the issue > InvalidOperationException: IDX20803: Unable to obtain configuration

[IOException: IDX20804: Unable to retrieve document from:
I am running my application on http with IISExpress and configuration wise i did all thats needed. But its still not working.

4

HI,Is this Issue fixed now.I am facing this same Issue in .net 6.Could u share the fix details pls…?

5

Hello @william.james.martin!

I found an article discussing an error this article describes. Please check it out and see if it solves your problem.

I hope this helps!

Best,
Alex

6

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