I personally don't use the "configure.me" ssids when administrating new setups. I prefer to reference the IP's of the system directly. My thought here is that you should be able to reference your Router's DHCP table and match up the IP addresses if you get stuck, I would just try
https:// IPs you find> until you get a positive hit(I.E
https://192.168.1.252)
I hope that helps, otherwise, is it broadcasting ANY ssid's?(WLAN)