Assuming both browser & Server supports a web-socket connection.
If I've got 2 hubs on my SignalR server. and my SignalR client connects to both. does that mean that my signalR client will open up 2 separate web-socket connections to the server?
In SignalR v2+, hubs will share the same connection. I've had systems with connections to 4+ hubs without performance issue.
Question is a bit of a duplicate of: Multiple signalR connections/hubs on your website