Given that the device can't connect to either GV or OBiTalk servers, I'd suspect a general Internet connectivity issue. Try powering off modem, separate router (if any) and OBi. Power up modem, wait for it to come ready, then router and finally the OBi. If no luck, post make/model of modem and router, and note any special settings (static IP, firewall, port forwarding, etc.)