title: How to resolve that ? Identity Server 4, 500 Internal Server Error on .Net Core App
body: <p>I have a dotnet core app on Azure Kubernetes Cluster. Identity Server 4 and api are runnig on the cluster. When i send a request my api then i get 500 error from api response. But if i try on my computer then i get success</p>
  <p>An unhandled exception has occurred while executing the request.</p>
  <p>System.InvalidOperationException: IDX20803: Unable to obtain configuration from: 'https://xxx/identity-api/.well-known/openid-configuration'.</p>
  <p>System.IO.IOException: IDX20804: Unable to retrieve document from: 'https://xxx/identity-api/.well-known/openid-configuration'.</p>
  <p>System.Net.Http.HttpRequestException: No route to host (xxx:443)</p>
  <p>System.Net.Sockets.SocketException (113): No route to host</p>
  <p>How to resolve that ?</p>