I am currently using:
AspNetCore 2.2 Web Application Angular CLI: 8.3.3 Node: 10.16.0 OS: Windows 32-bit x64 Angular: 6.1.10
services.AddSignalR();
app.UseSignalR(config => {
config.MapHub<NotificationHub>("/notify");
});
this.hubConnection.start().then(c => {
console.log('connected');
});