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SSL/TLS-problem for https://dl.episerver.net/version.json
Try this in global.asax at application start
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
Jun 27, 2019 17:05
I get some SSL/TLS errors logged for an EpiServer site that occurs pretty frequently in our production environment.
Anybody else who have the same problem? It seems like episerver.net sometimes have problem with SSL/TLS. See log below.
EPiServer.Find.UI.Helpers.ExternalResourceHelper: Could not fetch https://dl.episerver.net/version.json, the following occured: System.AggregateException: One or more errors occurred. ---> System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: The request was aborted: Could not create SSL/TLS secure channel.
at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
at System.Net.Http.HttpClientHandler.GetResponseCallback(IAsyncResult ar)
--- End of inner exception stack trace ---
--- End of inner exception stack trace ---
at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
at EPiServer.Find.UI.Helpers.ExternalResourceHelper.FetchVersionFromExternalResource[T](String urlToJsonFile)
---> (Inner Exception #0) System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: The request was aborted: Could not create SSL/TLS secure channel.
at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
at System.Net.Http.HttpClientHandler.GetResponseCallback(IAsyncResult ar)
--- End of inner exception stack trace ---<---