Can't get PKCEToken from OAuthClient

[ghost]

I'm creating a desktop application, and am trying to get the authentication to work. The IOAuthServer starts and stops without a problem. I get the Authorization Code as desired. Yet, when it gets to the OAuthClient().RequestToken() call, the code completely stops without an error. Not sure what's going wrong here.

var (verifier, challenge) = PKCEUtil.GenerateCodes();
await _server.Start();
_server.AuthorizationCodeReceived += async (source, response) =>
{
await _server.Stop();
var token= await new OAuthClient().RequestToken(new PKCETokenRequest(_clientId!, response.Code, _server.BaseUri, verifier));
// When stepping through the code, the debugger never gets to any code below the above line, token doesn't appear to be assigned to.
};

[ghost]

This is resolved now. Looks like my firewall was the problem.