Last night, when I tried to make calls to and from the phone attached to Obi100 with google voice or another SIP provider, no calls could go through. Then I turned on computer and try to check what's wrong with the device by typing the Obi100's IP address (192.168.1.xx) in IE, but no response. Then I ping-ed the device, no response either. Finally, I power cycled the device, and it worked after a while, everything back to normal. I wonder if there is anything wrong with the software or firmware which makes the unit unstable? Is there a patch? Thanks!