World IPv6 Day Begins This Evening

World IPv6 Day begins this evening in the U.S. Comcast will be continuously monitoring our network and customer contact volume closely during this event, from an IPv6 command center in Philadelphia. We anticipate that the overwhelming majority of our customers should not experience any difficulty accessing participating web sites. Nevertheless, if a customer does have difficulty, they can run a simple test to see if World IPv6 Day is the cause, by visiting If a problem is discovered, instructions are be provided on that page. In addition, for Windows users that experience a problem, Microsoft has released a special fix. If customers need additional help, they should visit our customer forums.