404 error on signalr/hubs and on jquery scripts
404 error may occure when IIS could not handle extension less url
The MSDN article demonstrates how to create SignalR applications in version 2.0. But you use signalr 1.0 and probably older verstion of visual studio. upgrade the visual studio and use nugget package manager to add signalr 2.0 requirements to your project. I think as a first try it is better to use asp.net web application instead of MVC ( as MSDN article ). So you will not have routing problem. I could run the sample with no problem.