I\'m following this tutorial step by step
http://www.asp.net/signalr/overview/signalr-20/getting-started-with-signalr-20/tutorial-signalr-20-self-host
And I\
Simple, Go to your web.config file. Change the "bindingRedirect" tag for Microsoft.Owin, Microsoft.Owin.Security.OAuth, Microsoft.Owin.Security.Cookies, Microsoft.Owin.Security to as follows:
this could work.