not needed, since UseIdentityServer adds the authentication middleware

Author: ddrsql

src/Services/Identity/Identity.API/Startup.cs

@@ -148,8 +148,6 @@ public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerF
                 await next();
             });
 
-            app.UseAuthentication();
-
             // Adds IdentityServer
             app.UseIdentityServer();