said by NetFixer:Back in May/June of this year, Comcast did push a failed firmware update to many SMCD3G-CCR. After problems started showing up with that update, Comcast did a push install back to the previous version, and many users (including me) found themselves in the situation that you have described.
My guess is that possibly you also had this happen, but this is the first time that your SMC boxes got rebooted, and that symptom is just now being see, or Comcast is once again trying to update the SMC boxes to be able to handle IPv6. Either way, it is probably going to take a call to support (and/or a factory default reset) to get local admin access back again.
Thanks for the history, and the suggestion. At this time I am not encountering any issues with my Internet, so I do not have a real need to log into the SMC. When I do, I will give Customer Support a shout.
Thanks again.
