I just want to emphasize this a bit: IPv6 won't cause hangs even if the connection is IPv4 only if things are configured correctly. (That said, I've seen incor

I just want to emphasize this a bit: IPv6 won't cause hangs even if the connection is IPv4 only if things are configured correctly. (That said, I've seen incorrect configurations: Comcast, at one point, assigned me an IPv6 address (automatically) and led the system to believe that their was a valid IPv6 route, but proceeded to drop all IPv6 packets. This same scenario can happen on IPv4, too, and the resolution is the same: worm your way through the bowels of support until you reach someone competent.)