AcquireTokenSilent always Failed to acquire token silently

Question

Using ADAL I have two AuthenticationContext using a Token Cache persisted in SQL.

Using AcquireTokenByAuthorizationCode it writes the Token

Answer 1

Check if token is existing in cache else sign out and ask user to sign in.

AuthenticationContext authContext = new AuthenticationContext(Startup.Authority,
                        new NaiveSessionCache(userObjectID));
                    if (authContext.TokenCache.Count == 0)
                    {
                        authContext.TokenCache.Clear();
                        CosmosInterface.Utils.AuthenticationHelper.token = null;
                        HttpContext.GetOwinContext().Authentication.SignOut(
                            OpenIdConnectAuthenticationDefaults.AuthenticationType,
                            CookieAuthenticationDefaults.AuthenticationType);
                    }