IdentityServer4 with WebApi 4.6

I am setting up an Identity Server with IdentityServer4 (.Net Core) protect Api Web in .Net Framework 4.6.2

I already manage to protect the API but I can not get the token type Bearer
 allow access.

Client Configuration in IdentiyServidor4:

 new Client
        {
            ClientId = "mvc",
            ClientName = "MVC Client",
            //AllowedGrantTypes = GrantTypes.HybridAndClientCredentials,
            AllowedGrantTypes = GrantTypes.ClientCredentials,
            //RequireConsent = true,

            ClientSecrets =
            {
                new Secret("secret".Sha256())
            },

            //RedirectUris = { "http://localhost:5002/signin-oidc" },
            //PostLogoutRedirectUris = { "http://localhost:5002/signout-callback-oidc" },
             AllowedScopes = { "api2" }

            //AllowedScopes =
            //{
            //    IdentityServerConstants.StandardScopes.OpenId,
            //    IdentityServerConstants.StandardScopes.Profile,
            //    "api2"
            //},
            //AllowOfflineAccess = true
        }

Configure API Security:

public void Configuration(IAppBuilder app)
    {

        OAuthBearerOptions = new OAuthBearerAuthenticationOptions();
        //Token Consumption
        app.UseOAuthBearerAuthentication(OAuthBearerOptions);

        // Para obtener más información sobre cómo configurar la aplicación, visite https://go.microsoft.com/fwlink/?LinkID=316888

        app.UseCookieAuthentication(new CookieAuthenticationOptions
        {
            AuthenticationType = "Cookies"
        });

        app.UseOpenIdConnectAuthentication(new OpenIdConnectAuthenticationOptions
        {

            AuthenticationType = "oidc",
            SignInAsAuthenticationType = "Cookies",
            Authority = "http://localhost:5000", //ID Server SSO Server
            ClientId = "mvc",
            ClientSecret = "secret",
            ResponseType = "code id_token",
            //RedirectUri = "http://localhost:55392/signin-oidc", //URL of Client website
            //PostLogoutRedirectUri = "http://localhost:55392/signout-callback-oidc", //URL of Client website
            Scope = "api2",
            //AuthenticationMode = Microsoft.Owin.Security.AuthenticationMode.Active,

            RequireHttpsMetadata = false,

        });

    }

Client that invokes the API:

Console.ReadKey();
        // discover endpoints from metadata
        var disco = await DiscoveryClient.GetAsync("http://localhost:5000");
        if (disco.IsError)
        {
            Console.WriteLine(disco.Error);
            return;
        }

        // request token
        var tokenClient = new TokenClient(disco.TokenEndpoint, "mvc", "secret");
        var tokenResponse = await tokenClient.RequestClientCredentialsAsync("api2");

        if (tokenResponse.IsError)
        {
            Console.WriteLine(tokenResponse.Error);
            return;
        }

        Console.WriteLine(tokenResponse.Json);
        Console.WriteLine("\n\n");

        // call api
        var client = new HttpClient();
        client.SetBearerToken(tokenResponse.AccessToken);

        var response = await client.GetAsync("http://localhost:55392/api/protected");
        if (!response.IsSuccessStatusCode)
        {
            Console.WriteLine(response.StatusCode);
        }
        else
        {
            var content = await response.Content.ReadAsStringAsync();
            Console.WriteLine(JArray.Parse(content));
        }
        Console.ReadKey();

  

Customer Result:   Create the token but can not find the api:

{
  "access_token": "eyJhbGciOiJSUzI1NiIsImtpZCI6IjUzNGQzMTM2ZjI3YmJlZDFkODMxNzI4MTA0YWIyNGM3IiwidHlwIjoiSldUIn0.eyJuYmYiOjE1MjcxMTUwNzksImV4cCI6MTUyNzExODY3OSwiaXNzIjoiaHR0cDovL2xvY2FsaG9zdDo1MDAwIiwiYXVkIjpbImh0dHA6Ly9sb2NhbGhvc3Q6NTAwMC9yZXNvdXJjZXMiLCJhcGkyIl0sImNsaWVudF9pZCI6Im12YyIsInNjb3BlIjpbImFwaTIiXX0.jhP9CsldyC_vIKlvJhK9LpcLQW3Y4yJMODVwkJwudioHynl-05y0mEy-BV2OvlU9oNKqXUEWpoTXlwEs8uDVct7Mym9KTjZcc-ORrzUvAdBoW07LN0rukI6WjkKA6UL95JsO_EjZRBtYlGBdkY50p9ijP-9J3r5JTjPKO-0-KhUGzweDnSSTAa_Y8t7Ol3B20_DrDhDOuytFgSDz0ugTOGArABMpJpuM7yeJNrf3yP0j8fKRLHXYmbta2_bNsVXXnT6KhOuy2fDQ7-iLTScdg4sr_uCmHySCSO5rSy83_jZmr0WfUNm7sPmQEHCHO9PFMpl2E-IH7_kThEl5_SXcTQ",
  "expires_in": 3600,
  "token_type": "Bearer"
}

NotFound