Visual Studio fails to connect to Xamarin Build Host

Is it one of those rainy days where you sit in front of  your Mac and would like to try out the latest and greatest Xamarin features like Xamarin.Forms and then Visual Studio refuses to connect to the Xamarin Build Host?

Xamarin Build Host

You did not change anything of course. It just stopped working over night. That’s what computers do to keep us busy. Your options: Xamarin support? Takes to long, so let’s resolve this all by ourselves.