客户端未收到SignalR消息

I've been trying to get my WPF client app to receive a SignalR message sent by the WCF service. I've tried many things and have now resorted to hacking away in the hopes that something just works. I've followed tutorials and examples online, and I simply can't get my WPF OnSignalRMessage() method to get called. I've been trying to get my WPF client app to re