//bypass ssl validation check by using RestClient object var options = new RestClientOptions(baseurl) { RemoteCertificateValidationCallback = (sender, certificate, chain, sslPolicyErrors) => true; }; var restClient = new RestClient(options);
or in application level
//bypass ssl validation check globally for whole application. ServicePointManager.ServerCertificateValidationCallback += (sender, certificate, chain, sslPolicyErrors) => true;