Help with C# and HttpClient.PostAsync

Hi there I need some help with using [login to view URL] as not async. I always get blocking tasks and I dont know why ... Here is what I am trying: I have two functions, GetToken and Send. I can run GetToken and the Token is generated. As soon as I then run Send (Token, JsonString) with generated Token, Send gets blocked and never finishes. Below I send you the two methods. I think, for somebody who knows HttpClient well, it is some minutes of work. I cannot give a testable solution as the API url is not for public. And as this application is old style WinForms, I cannot use await. Best regards Frank Token _Token = [login to view URL](); var _Result = [login to view URL](_Token, [login to view URL]); public Token GetToken() { Dictionary<string, string> _Headers = new Dictionary<string, string> { {"grant_type", "client_credentials"}, {"scope", private_Scope}, {"client_id", private_ClientId}, {"client_secret", private_ClientSecret}, }; using ([login to view URL] _HttpClient = new [login to view URL]()) { using ([login to view URL] _HttpResponseMessage = [login to view URL]([login to view URL]("{0}{1}", private_TokenEndpoint, private_TokenEndpointExtension), new [login to view URL](_Headers)).GetAwaiter().GetResult()) { var _JsonContent = [login to view URL]().GetAwaiter().GetResult(); return [login to view URL]<Token>(_JsonContent); } } } public bool Send(Token _Token, string _JsonToSend) { using (MyHttpDelegatingHandler _MyHttpDelegatingHandler = new MyHttpDelegatingHandler(_Token)) { using ([login to view URL] _HttpClient = [login to view URL](_MyHttpDelegatingHandler)) { using ([login to view URL] _HttpResponseMessage = [login to view URL]([login to view URL]("{0}{1}", private_Endpoint, private_EndpointExtension), new StringContent(_JsonToSend, [login to view URL], "application/json")).Result) { string _ResponseMessage = [login to view URL]().GetAwaiter().GetResult(); if ([login to view URL]) { return true; } else { throw new Exception([login to view URL]("ERROR! Status code: {0}", [login to view URL], _ResponseMessage)); } } } } } public class Token { [[login to view URL]("access_token")] public string AccessToken { get; set; } [[login to view URL]("token_type")] public string TokenType { get; set; } [[login to view URL]("expires_in")] public int ExpiresIn { get; set; } } public class MyHttpDelegatingHandler : [login to view URL] { private readonly Token private_Token; private MyHttpDelegatingHandler() { } public MyHttpDelegatingHandler(Token _Token) { private_Token = _Token; } protected async override Task<[login to view URL]> SendAsync([login to view URL] _HttpRequestMessage, [login to view URL] _CancellationToken) { [login to view URL] = new [login to view URL]([login to view URL], [login to view URL]); [login to view URL] _HttpResponseMessage = await [login to view URL](_HttpRequestMessage, _CancellationToken); return _HttpResponseMessage; } }