Beware the 6141 at the moment. It is using a Firmware that is greatly limiting speeds - Comcast has a new version put hasn't pushed it yet publically. It fixes the issue.
DLSReports' Comcast forum is littered with posts. Guys there who work with Comcast are helping push the firmware to fix users' issues.
DLSReports' Comcast forum is littered with posts. Guys there who work with Comcast are helping push the firmware to fix users' issues.