Just a heads up, I first noticed significant packet loss to tserv1.den1.he.net at 4:50 PM CST, followed by it being unreachable at 5:05 PM CST. Still down as of 5:45 PM CST. Thanks.
The forum is useful if you need help debugging or if you want to figure out if anybody else is affected by the problem. But if you are able to narrow the problem down to a tunnel server without help from the forum, then there is a better place to report the problem. The forum is not for problem reports, there is no guarantee they will be seen by the right people. If you want to report a problem use ipv6@he.net instead.
Thanks, I forgot.