This just come up and after searching and testing it like to Fix SignalR OnDisconnected if not working is to implement on the client at least one method so that this method will be called. Think of it like a requirement.

Example for the SignalR residing on the same server

<!– Reference to jQuery –>
<!– Reference to SignalR –>
<script src=”~/hubs/signalr“></script>
<script>
var onlineHubProxy = $.connection.onlineHub;

onlineHubProxy.client.void = function(){
//do nothing
};

$.connection.start();

</script>

Then try again now and the Default methods of hubs will now be working properly.

God Bless!

Thanks,
Thomie