My probe #35105's builtin test "#2009 Ping to a.root-servers.net (2001:503:ba3e::2:30)" fail most of the time while IPv6 pings to other targets work just fine. From poking around other probes, this seems to be a common problem. I wonder if this is why my probe never keeps its "IPv6 Stable 1d" tag for long when it does eventually get it. The way I see it, that one failing test set puts the probe below the 95% working cutoff for IPv6. Are other people seeing the same failing ping6 to a.root-servers.net? 2018-01-25 12:33:27 UTC Probe auto-untagged Your probe #35105 was automatically untagged as "system: IPv6 Stable 1d" 2018-01-25 08:35:56 UTC Probe auto-tagged Your probe #35105 was automatically tagged as "system: IPv6 Stable 1d" -wolfgang