I retrieved the newly "secured" router from Junaid. It had apparently been hooked up to the GC network via it's LAN port, but it's LAN services had no been shut off. It was therefore offering a competing DHCP server, which will totally hose a network. A definite NONO.
The new SSID is "40mWiFi", it's WPA2, and the password is pasted to the bottom of the unit (the unit is back in it's original spot on the office computer rack.