Sorry if I missed a post in this thread, but did you already reboot your router, Kingsrule?

The last time I was unable to het Control:Mac to connect via WiFi (not on Yosemite), I spent quite some time trying to figure out where Control:Mac was getting Core's IP address from. I used Dtrace, trudged through binaries for clues with the strings command, deleted cache files, cracked open all the etc, to no avail.

Control:Mac did connect via a wired connection. The only thing that made WiFi work again was to reboot the router.

I'd still love to know how Control:Mac determines what IP to connect to.

Soundserge