Same problem. I fixed it by entering my new Google password via the OBiTalk page (
http://www.obitalk.com/obinet/pg/obhdev/devices, click on my OBi110, click on the gear to the right side of SP1) _first_, doing the save and reset cycles as directed. Then, I accessed my OBi110 directly via its local IP address (what ***1 reports). Find Voice Services | SP1 Service, scroll down to SIP Credentials, and enter the new password in AuthPassword. Submit, then Reboot.
I suspect that the OBi system has a bug synchronizing the entered password between the OBiTalk page and the actual box.
-- Lee