Comcast in New England/Massachusetts has been experiencing intermittent IPv6 packet loss and outages for the past hour or so on and off. Here is a traceroute when it isn't going through: Packets Pings Host Loss% Snt Last Avg Best Wrst StDev 1. 2601:19c:4880:5121::1 0.0% 53 2.0 1.9 1.3 4.4 0.4 2. 2001:558:4023:147::1 1.9% 53 11.8 22.0 10.4 131.7 21.5 3. 2001:558:202:410::1 0.0% 53 13.8 15.5 10.0 70.9 11.6 4. 2001:558:200:364::1 0.0% 53 68.7 18.6 10.4 190.7 25.9 5. 2001:558:200:4020::1 11.5% 53 49.1 21.4 12.5 170.3 23.8 6. be-7015-cr02.newyork.ny.ibone.co 26.4% 53 100.8 33.9 18.5 116.8 26.7 7. ??? The last working hop above resolves to: 2001:558:0:f6b6::1. It has been down for the last 5-10 minutes now.