If you are like me, and couldn't get into your Linksys router that was provided by Comcast. After you have done a hard reset (hold down the reset button for 30 seconds, pull the power cord for 1 minute, and then plug it back in) you can login into your Comcast Linksys WCG200-cc router with:
User id: comcast password: 1234
Hope that helps the internet masses.
Tim-