How long for my RBoom to be recognized?

I have just plugged it in a few minutes ago. I have it plugged into an ethernet extender that is plugged into my wall. I understand it may take up to 5 hours for the system to update. It took 24 hours for my Raspberry Shake 4D to be recognized. My question is, how long before I can access my new Boom and since I am using rs.local/ for my Shake 4D, do I use rs-2.local/ for my Boom? Any help helps, thanks.