• Resolving Internet connectivity issues after World IPv6 Launch (June 6, 2012): »support.microsoft.com/kb/2533454
• Ref: "This article describes instructions for mitigating issues you may have connecting to the Internet, or certain websites, on or after World IPv6 Launch (June 6, 2012)."
• Included is a tool to "Fix it for me". This tool gives the option to prefer "IPv4 over IPv6" or to prefer "IPv6 over IPv4".
*Thanks to Romney2012 for posting this resource: Prefer-IPV4-or-IPV6
*This FAQ is based on user knowledge from a volunteer core of BroadbandReports' members. This FAQ in no way constitutes official information from Comcast or any of its affiliates.