Hello,
I'm working on an app that access an webservice. When i send a request to the webservice i get this error back from inside an WebException.
For the request i use the HttpClient class with an PostAsync call.
I double checked the certificate and everything sould be fine. When i navigate to the browser everything is good and the a few hours ago everything worked fine..
System.Net.WebException: Error: TrustFailure (CertificateUnknown) ---> Mono.Security.Interface.TlsException: CertificateUnknown