[atlas] IPv6 working

Hi, This seems to be an anchor that has Ipv6 connectivity but probably connected to a network with a incomplete routing table. https://atlas.ripe.net/probes/6149/#!tab-builtins It cannot reach a lot of the internet so I'm wondering what causes the system to flag it as "ipv6 works". Also, I've done a few hundred pings and found that probes get their "ipv6 works" only taken away after it has been failing for a few hours. Could that please be changed to something short like 10 minutes? And if possible, some stability tests so that if connectivity comes and goes that if does not get back it's "works" status. Thanks, Dave