Numbers in parenthesis next to computer names
There is a number in parentheses beside my computer name that keeps incrementing up (now "(9)"), and the local name increments as well (now ".2"). I can change it back by deleting those numbers but they recur. I am running Yosemite (10.10.1) on a MacBook Pro, and have both wifi and ethernet running. Is it because both of those connections put my computer online so that they can't share the same name? If so, which one is being shown when a name comes up? It is a nuisance.
MacBook Pro (Retina, Mid 2012), OS X Yosemite (10.10.1)